Knowledge

Corrosion

Source 📝

846: 776: 1017:
allowances can soon be exceeded leading to premature failure of the steel pile. Piles that have been coated and have cathodic protection installed at the time of construction are not susceptible to ALWC. For unprotected piles, sacrificial anodes can be installed locally to the affected areas to inhibit the corrosion or a complete retrofitted sacrificial anode system can be installed. Affected areas can also be treated using cathodic protection, using either sacrificial anodes or applying current to an inert anode to produce a calcareous deposit, which will help shield the metal from further attack.
784: 433: 1114: 728: 1679: 1056: 2162: 1103: 1330: 303: 1593: 43: 1403: 1786: 1418:, which is used to predict and control oxide layer formation in diverse situations. A simple test for measuring corrosion is the weight loss method. The method involves exposing a clean weighed piece of the metal or alloy to the corrosive environment for a specified time followed by cleaning to remove corrosion products and weighing the piece to determine the loss of weight. The rate of corrosion ( 573: 140: 1217: 638:
passive film thickness on aluminium, stainless steels, and alloys is within 10 nanometers. The passive film is different from oxide layers that are formed upon heating and are in the micrometer thickness range – the passive film recovers if removed or damaged whereas the oxide layer does not. Passivation in natural environments such as air, water and soil at moderate
1518: 952:"), or other compounds capable of oxidizing (or assisting the oxidation of) the material concerned. For example, materials used in aerospace, power generation, and even in car engines must resist sustained periods at high temperature, during which they may be exposed to an atmosphere containing the potentially highly-corrosive products of combustion. 2149:(dissolution) rate of the glass (cm/d). In closed systems, the consumption of protons from the aqueous phase increases the pH and causes a fast transition to hydrolysis. However, a further saturation of solution with silica impedes hydrolysis and causes the glass to return to an ion-exchange; e.g., diffusion-controlled regime of corrosion. 831:(in types 321 and 347, respectively), can prevent this effect, but the latter require special heat treatment after welding to prevent the similar phenomenon of "knifeline attack". As its name implies, corrosion is limited to a very narrow zone adjacent to the weld, often only a few micrometers across, making it even less noticeable. 352:, although in this context, the term "degradation" is more common. Corrosion degrades the useful properties of materials and structures including mechanical strength, appearance, and permeability to liquids and gases. Corrosive is distinguished from caustic: the former implies mechanical degradation, the latter chemical. 2342:
Hydrolytic class 3 (Type III): Glass of the 3rd hydrolytic class usually contains sodium silicate glasses and has a mean hydrolytic resistance, which is two times poorer than of type 1 glasses. Acid class DIN 12116 and alkali class DIN 52322 (ISO 695) are to be distinguished from the hydrolytic class
1793:
Glass is characterized by a high degree of corrosion resistance. Because of its high water resistance, it is often used as primary packaging material in the pharmaceutical industry since most medicines are preserved in a watery solution. Besides its water resistance, glass is also robust when exposed
1393:
Anodic protection impresses anodic current on the structure to be protected (opposite to the cathodic protection). It is appropriate for metals that exhibit passivity (e.g. stainless steel) and suitably small passive current over a wide range of potentials. It is used in aggressive environments, such
1235:
wide, appear in the metal's oxide film. These pores allow the oxide to grow much thicker than passivating conditions would allow. At the end of the treatment, the pores are allowed to seal, forming a harder-than-usual surface layer. If this coating is scratched, normal passivation processes take over
955:
Some products of high-temperature corrosion can potentially be turned to the advantage of the engineer. The formation of oxides on stainless steels, for example, can provide a protective layer preventing further atmospheric attack, allowing for a material to be used for sustained periods at both room
864:
Crevice corrosion is influenced by the crevice type (metal-metal, metal-non-metal), crevice geometry (size, surface finish), and metallurgical and environmental factors. The susceptibility to crevice corrosion can be evaluated with ASTM standard procedures. A critical crevice corrosion temperature is
760:
Pitting results when a small hole, or cavity, forms in the metal, usually as a result of de-passivation of a small area. This area becomes anodic, while part of the remaining metal becomes cathodic, producing a localized galvanic reaction. The deterioration of this small area penetrates the metal and
1653:
that hold them together leave very little free chemical energy in the structure; they can be thought of as already corroded. When corrosion does occur, it is almost always a simple dissolution of the material or chemical reaction, rather than an electrochemical process. A common example of corrosion
1034:
is a catastrophic form of corrosion that occurs when susceptible materials are exposed to environments with high carbon activities, such as synthesis gas and other high-CO environments. The corrosion manifests itself as a break-up of bulk metal to metal powder. The suspected mechanism is firstly the
1337:
For effective CP, the potential of the steel surface is polarized (pushed) more negative until the metal surface has a uniform potential. With a uniform potential, the driving force for the corrosion reaction is halted. For galvanic CP systems, the anode material corrodes under the influence of the
509:
than others, based on how strongly its ions are bound to the surface. Two metals in electrical contact share the same electrons, so that the "tug-of-war" at each surface is analogous to competition for free electrons between the two materials. Using the electrolyte as a host for the flow of ions in
1016:
Accelerated low-water corrosion (ALWC) is a particularly aggressive form of MIC that affects steel piles in seawater near the low water tide mark. It is characterized by an orange sludge, which smells of hydrogen sulfide when treated with acid. Corrosion rates can be very high and design corrosion
860:
is a localized form of corrosion occurring in confined spaces (crevices), to which the access of the working fluid from the environment is limited. Formation of a differential aeration cell leads to corrosion inside the crevices. Examples of crevices are gaps and contact areas between parts, under
1578:
Until 20–30 years ago, galvanized steel pipe was used extensively in the potable water systems for single and multi-family residents as well as commercial and public construction. Today, these systems have long ago consumed the protective zinc and are corroding internally, resulting in poor water
700:
Passivation is extremely useful in mitigating corrosion damage, however even a high-quality alloy will corrode if its ability to form a passivating film is hindered. Proper selection of the right grade of material for the specific environment is important for the long-lasting performance of this
1346:
between the anode and the cathode. The most common sacrificial anode materials are aluminum, zinc, magnesium and related alloys. Aluminum has the highest capacity, and magnesium has the highest driving voltage and is thus used where resistance is higher. Zinc is general purpose and the basis for
747:
under fairly extreme circumstances, they can continue to grow even when conditions return to normal, since the interior of a pit is naturally deprived of oxygen and locally the pH decreases to very low values and the corrosion rate increases due to an autocatalytic process. In extreme cases, the
1354:
into the environment including seawater. From a working perspective, sacrificial anodes systems are considered to be less precise than modern cathodic protection systems such as Impressed Current Cathodic Protection (ICCP) systems. Their ability to provide requisite protection has to be checked
1140:
treatments. They work by providing a barrier of corrosion-resistant material between the damaging environment and the structural material. Aside from cosmetic and manufacturing issues, there may be tradeoffs in mechanical flexibility versus resistance to abrasion and high temperature. Platings
637:
Passivation refers to the spontaneous formation of an ultrathin film of corrosion products, known as a passive film, on the metal's surface that act as a barrier to further oxidation. The chemical composition and microstructure of a passive film are different from the underlying metal. Typical
1173:
can often be added to it. These chemicals form an electrically insulating or chemically impermeable coating on exposed metal surfaces, to suppress electrochemical reactions. Such methods make the system less sensitive to scratches or defects in the coating, since extra inhibitors can be made
739:, can interfere with a given alloy's ability to re-form a passivating film. In the worst case, almost all of the surface will remain protected, but tiny local fluctuations will degrade the oxide film in a few critical points. Corrosion at these points will be greatly amplified, and can cause 2176:
The standard procedure ISO 719 describes a test of the extraction of water-soluble basic compounds under neutral conditions: 2 g of glass, particle size 300–500 μm, is kept for 60 min in 50 mL de-ionized water of grade 2 at 98 °C; 25 mL of the obtained solution is titrated against
1696:
involves several complex and often poorly understood physiochemical processes. These are strikingly different from the other processes discussed here, and so the term "corrosion" is only applied to them in a loose sense of the word. Because of their large molecular weight, very little
1955:
O) ion from the solution. It causes an ion-selective depletion of near surface layers of glasses and gives an inverse-square-root dependence of corrosion rate with exposure time. The diffusion-controlled normalized leaching rate of cations from glasses (g/cm·d) is given by:
1529:
released a study titled "Corrosion Costs and Preventive Strategies in the United States" on the direct costs associated with metallic corrosion in the US industry. In 1998, the total annual direct cost of corrosion in the US roughly $ 276 billion (or 3.2% of the US
1239:
Anodizing is very resilient to weathering and corrosion, so it is commonly used for building facades and other areas where the surface will come into regular contact with the elements. While being resilient, it must be cleaned frequently. If left without cleaning,
2323:. Through its composition neutral glass has a high resistance against temperature shocks and the highest hydrolytic resistance. Against acid and neutral solutions it shows high chemical resistance, because of its poor alkali content against alkaline solutions. 1534:
at the time). Broken down into five specific industries, the economic losses are $ 22.6 billion in infrastructure, $ 17.6 billion in production and manufacturing, $ 29.7 billion in transportation, $ 20.1 billion in government, and $ 47.9 billion in utilities.
1160:
coatings, like Durabak-M26 for example, can provide an anti-corrosive seal with a highly durable slip resistant membrane. Painted coatings are relatively easy to apply and have fast drying times although temperature and humidity may cause dry times to vary.
1812:
leaching (ion exchange) and hydrolytic dissolution of the glass network. Both mechanisms strongly depend on the pH of contacting solution: the rate of ion exchange decreases with pH as 10, whereas the rate of hydrolytic dissolution increases with pH as 10.
2152:
In typical natural conditions, normalized corrosion rates of silicate glasses are very low and are of the order of 10 to 10 g/(cm·d). The very high durability of silicate glasses in water makes them suitable for hazardous and nuclear waste immobilisation.
1252:
A new form of protection has been developed by applying certain species of bacterial films to the surface of metals in highly corrosive environments. This process increases the corrosion resistance substantially. Alternatively, antimicrobial-producing
1067:
Various treatments are used to slow corrosion damage to metallic objects which are exposed to the weather, salt water, acids, or other hostile environments. Some unprotected metallic alloys are extremely vulnerable to corrosion, such as those used in
811:
with the well-protected alloy nearby, which leads to "weld decay" (corrosion of the grain boundaries in the heat affected zones) in highly corrosive environments. This process can seriously reduce the mechanical strength of welded joints over time.
1538:
Rust is one of the most common causes of bridge accidents. As rust displaces a much higher volume than the originating mass of iron, its build-up can also cause failure by forcing apart adjacent components. It was the cause of the collapse of the
752:
to the point that otherwise tough alloys can shatter; a thin film pierced by an invisibly small hole can hide a thumb sized pit from view. These problems are especially dangerous because they are difficult to detect before a part or structure
926:). The iron sulfate coating will protect the steel from further reaction; however, if hydrogen bubbles contact this coating, it will be removed. Thus, a groove can be formed by a travelling bubble, exposing more steel to the acid, causing a 819:
shows no signs of sensitization, while a heavily sensitized steel shows the presence of grain boundary precipitates. The dark lines in the sensitized microstructure are networks of chromium carbides formed along the grain boundaries.
510:
the same direction, the noble metal will take electrons from the active one. The resulting mass flow or electric current can be measured to establish a hierarchy of materials in the medium of interest. This hierarchy is called a
2749:
R. Zuo; D. Örnek; B.C. Syrett; R.M. Green; C.-H. Hsu; F.B. Mansfeld; T.K. Wood (2004). "Inhibiting mild steel corrosion from sulfate-reducing bacteria using antimicrobial-producing biofilms in Three-Mile-Island process water".
1701:
can be gained by mixing a given mass of polymer with another substance, making them generally quite difficult to dissolve. While dissolution is a problem in some polymer applications, it is relatively simple to design against.
540:, which removes some layers of the underlying metal to make a smooth surface. For example, phosphoric acid may also be used to electropolish copper but it does this by removing copper, not the products of copper corrosion. 456:. For example, zinc is often used as a sacrificial anode for steel structures. Galvanic corrosion is of major interest to the marine industry and also anywhere water (containing salts) contacts pipes or metal structures. 378:
The chemistry of corrosion is complex; it can be considered an electrochemical phenomenon. During corrosion at a particular spot on the surface of an object made of iron, oxidation takes place and that spot behaves as an
595:
tend to decompose spontaneously into pure metal, which is why these elements can be found in metallic form on Earth and have long been valued. More common "base" metals can only be protected by more temporary means.
2025: 2326:
Hydrolytic class 2 (Type II): This class usually contains sodium silicate glasses with a high hydrolytic resistance through surface finishing. Sodium silicate glass is a silicate glass, which contains alkali- and
1579:
quality and pipe failures. The economic impact on homeowners, condo dwellers, and the public infrastructure is estimated at $ 22 billion as the insurance industry braces for a wave of claims due to pipe failures.
1548:
investigation showed that a drain in the road had been blocked for road re-surfacing, and had not been unblocked; as a result, runoff water penetrated the support hangers. Rust was also an important factor in the
1543:
in 1983, when support bearings rusted internally and pushed one corner of the road slab off its support. Three drivers on the roadway at the time died as the slab fell into the river below. The following
1705:
A more common and related problem is "swelling", where small molecules infiltrate the structure, reducing strength and stiffness and causing a volume change. Conversely, many polymers (notably flexible
947:
is chemical deterioration of a material (typically a metal) as a result of heating. This non-galvanic form of corrosion can occur when a metal is subjected to a hot atmosphere containing oxygen, sulfur
1923: 2085:
Glass network dissolution is characteristic of the later phases of corrosion and causes a congruent release of ions into the water solution at a time-independent rate in dilute solutions (g/cm·d):
2405: – Corrosion tests in which the environment, temperature, and/or other parameters are cycled on a regular basis. Often these cycles are used to evaluate corrosion in an accelerated manner. 2801: 2908: 761:
can lead to failure. This form of corrosion is often difficult to detect due to the fact that it is usually relatively small and may be covered and hidden by corrosion-produced compounds.
2813:
Most water heater manufacturers will recommend inspecting the condition of the sacrificial anode every one (1) to three (3) years and replacing it when it has been consumed more than 50%
2173:) of glasses in neutral, basic, and acidic environments, under simulated environmental conditions, in simulated body fluid, at high temperature and pressure, and under other conditions. 2130: 1471: 1084:
When surface treatments are used to reduce corrosion, great care must be taken to ensure complete coverage, without gaps, cracks, or pinhole defects. Small defects can act as an "
807:
of stainless alloys. This chemical reaction robs the material of chromium in the zone near the grain boundary, making those areas much less resistant to corrosion. This creates a
1350:
A number of problems are associated with sacrificial anodes. Among these, from an environmental perspective, is the release of zinc, magnesium, aluminum and heavy metals such as
1717:
The most common form of degradation, however, is a decrease in polymer chain length. Mechanisms which break polymer chains are familiar to biologists because of their effect on
1156:
Painting either by roller or brush is more desirable for tight spaces; spray would be better for larger coating areas such as steel decks and waterfront applications. Flexible
1005:. In the presence of oxygen (aerobic), some bacteria may directly oxidize iron to iron oxides and hydroxides, other bacteria oxidize sulfur and produce sulfuric acid causing 359:
corrode merely from exposure to moisture in air, but the process can be strongly affected by exposure to certain substances. Corrosion can be concentrated locally to form a
452:(the cathode) corrodes at a slower rate. When immersed separately, each metal corrodes at its own rate. What type of metal(s) to use is readily determined by following the 1951:. Diffusion-controlled leaching (ion exchange) is characteristic of the initial phase of corrosion and involves replacement of alkali ions in the glass by a hydronium (H 2276:
The standardized test ISO 719 is not suitable for glasses with poor or not extractable alkaline components, but which are still attacked by water; e.g., quartz glass, B
1153:. If the zinc coating is not thick enough the surface soon becomes unsightly with rusting obvious. The design life is directly related to the metal coating thickness. 2881: 1088:", allowing corrosion to penetrate the interior and causing extensive damage even while the outer protective layer remains apparently intact for a period of time. 1355:
regularly by means of underwater inspection by divers. Furthermore, as they have a finite lifespan, sacrificial anodes need to be replaced regularly over time.
1145:
will cause any exposed area to corrode much more rapidly than an unplated surface would. For this reason, it is often wise to plate with active metal such as
1575:. Measuring instruments based on the half-cell potential can detect the potential corrosion spots before total failure of the concrete structure is reached. 757:. Pitting remains among the most common and damaging forms of corrosion in passivated alloys, but it can be prevented by control of the alloy's environment. 673:
ions for silicon. On the other hand, unusual conditions may result in passivation of materials that are normally unprotected, as the alkaline environment of
701:
group of materials. If breakdown occurs in the passive film due to chemical or mechanical factors, the resulting major modes of corrosion may include
267: 2683: 2165:
Effect of addition of a certain glass component on the chemical durability against water corrosion of a specific base glass (corrosion test ISO 719).
665:, but many other factors are influential. Some conditions that inhibit passivation include high pH for aluminium and zinc, low pH or the presence of 2653: 2793: 2904: 2578:. New York : Toronto : New York: Macmillan Pub. Co. ; Collier Macmillan Canada ; Maxwell Macmillan International Pub. Group. 2708: 2417: 1962: 815:
A stainless steel is said to be "sensitized" if chromium carbides are formed in the microstructure. A typical microstructure of a normalized
791:
Stainless steel can pose special corrosion challenges, since its passivating behavior relies on the presence of a major alloying component (
669:
ions for stainless steel, high temperature for titanium (in which case the oxide dissolves into the metal, rather than the electrolyte) and
877:, hydrogen grooving is the corrosion of piping at grooves created by the interaction of a corrosive agent, corroded pipe constituents, and 1244:
will naturally occur. Anodization is the process of converting an anode into cathode by bringing a more active anode in contact with it.
1394:
as solutions of sulfuric acid. Anodic protection is an electrochemical method of corrosion protection by keeping metal in passive state
2440: 440:
Galvanic corrosion occurs when two different metals have physical or electrical contact with each other and are immersed in a common
3072: 3055: 295:. It is the gradual deterioration of materials (usually a metal) by chemical or electrochemical reaction with their environment. 1861: 1231:
often undergo a surface treatment. Electrochemical conditions in the bath are carefully adjusted so that uniform pores, several
367:-controlled process, it occurs on exposed surfaces. As a result, methods to reduce the activity of the exposed surface, such as 344:
of the original metal and results in a distinctive coloration. Corrosion can also occur in materials other than metals, such as
2511: 260: 2939: 2834: 2583: 1364: 1141:
usually fail only in small sections, but if the plating is more noble than the substrate (for example, chromium on steel), a
735:
Certain conditions, such as low concentrations of oxygen or high concentrations of species such as chloride which compete as
3010: 2972: 375:, can increase a material's corrosion resistance. However, some corrosion mechanisms are less visible and less predictable. 2873: 2478: 1670:, such flaws cause a dramatic reduction in the strength of a glass object during its first few hours at room temperature. 615:. While corrosion of these metals is continuous and ongoing, it happens at an acceptably slow rate. An extreme example is 1375:). Anodes for ICCP systems are tubular and solid rod shapes of various specialized materials. These include high silicon 107: 3004: 2434: 2851: 414:
in water may also be available due to dissolution of other acidic oxides from the atmosphere). This spot behaves as a
309:
connection of elements of the cooling tower of a power plant from 1904. Increased material volume caused by corrosion.
79: 3144: 2737: 1632: 661:
Passivation is primarily determined by metallurgical and environmental factors. The effect of pH is summarized using
253: 126: 3109: 363:
or crack, or it can extend across a wide area, more or less uniformly corroding the surface. Because corrosion is a
1305:
Cathodic protection (CP) is a technique to control the corrosion of a metal surface by making it the cathode of an
1270: 1363:
For larger structures, galvanic anodes cannot economically deliver enough current to provide complete protection.
436:
Galvanic corrosion of an aluminium plate occurred when the plate was connected to a mild steel structural support.
2850:
Koch, Gerhardus H.; Brongers, Michiel P.H.; Thompson, Neil G.; Virmani, Y. Paul; Payer, Joe H. (September 2001).
960:, prevent or reduce wear during high-temperature sliding contact of metallic (or metallic and ceramic) surfaces. 623:, but has such slow kinetics that it is effectively immune to electrochemical corrosion under normal conditions. 86: 3040: 2966: 2091: 1614: 1526: 1118: 64: 1179: 2466: 2428: 2363: 1430: 1372: 17: 536:
is often applied to ferrous tools or surfaces to remove rust. Corrosion removal should not be confused with
2675: 1043:
C species (where M is the metal), which migrate away from the metal surface. However, in some regimes, no M
845: 479:
directly affects the corrosion rates of the materials. Galvanic corrosion is often prevented by the use of
93: 1509:
Other common expressions for the corrosion rate is penetration depth and change of mechanical properties.
985:, or commonly known as microbiologically influenced corrosion (MIC), is a corrosion caused or promoted by 2649: 957: 372: 216: 1174:
available wherever metal becomes exposed. Chemicals that inhibit corrosion include some of the salts in
336:
oxides, is a well-known example of electrochemical corrosion. This type of corrosion typically produces
1816:
Mathematically, corrosion rates of glasses are characterized by normalized corrosion rates of elements
1610: 1006: 944: 432: 206: 60: 956:
and high temperatures in hostile conditions. Such high-temperature corrosion products, in the form of
75: 2704: 2516: 1258: 994: 775: 710: 221: 2181:
solution. The volume of HCl required for neutralization is classified according to the table below.
1929:
The overall corrosion rate is a sum of contributions from both mechanisms (leaching + dissolution):
1076:
or crumble into powder even in dry, temperature-stable indoor environments unless properly treated.
3176: 2599:
Hoffman, Robert S.; Burns, Michele M.; Gosselin, Sophie (2020). "Ingestion of Caustic Substances".
2402: 1773:
often do not include these additives so that they break down more easily as ultrafine particles of
1339: 993:. It can apply to both metallic and non-metallic materials, in the presence or absence of oxygen. 1603: 1561:
collapsed within a minute, killing 46 drivers and passengers who were on the bridge at the time.
1002: 905: 816: 770: 632: 368: 226: 53: 861:
gaskets or seals, inside cracks and seams, spaces filled with deposits, and under sludge piles.
2460: 1809: 1714:, which can be leached out of the structure, causing brittleness or other undesirable changes. 1531: 850: 196: 2905:"Potable Water Pipe Condition Assessment For a High Rise Condominium in The Pacific Northwest" 1825:(g/cm·d) which are determined as the ratio of total amount of released species into the water 783: 548:
Some metals are more intrinsically resistant to corrosion than others (for some examples, see
2381: 2372: 2054:
th cation effective diffusion coefficient (cm/d), which depends on pH of contacting water as
1063:
equipment such as helicopters to protect them from corrosion, thus saving millions of dollars
930:. The grooving is exacerbated by the tendency of subsequent bubbles to follow the same path. 557: 296: 2481: – Predictive measurement of stainless steel resistance to localized pitting corrosion 2445: 2328: 2320: 1770: 1415: 1379:, graphite, mixed metal oxide or platinum coated titanium or niobium coated rod and wires. 1306: 1047:
C species is observed indicating a direct transfer of metal atoms into the graphite layer.
749: 603:, even though their corrosion is thermodynamically favorable. These include such metals as 8: 3181: 2490: 2393: 2354: 1730: 1693: 1659: 1569: 1540: 1343: 1342:
is caused by the current flow from the anode to the cathode, driven by the difference in
1300: 1241: 1195: 1170: 1113: 982: 977: 561: 553: 241: 211: 176: 3171: 2775: 2387: 2300: 1722: 1707: 1310: 1142: 1010: 808: 754: 444:, or when the same metal is exposed to electrolyte with different concentrations. In a 427: 387:
released at this anodic spot move through the metal to another spot on the object, and
201: 181: 100: 3080: 2299:
Hydrolytic class 1 (Type I): This class, which is also called neutral glass, includes
2169:
There exist numerous standardized procedures for measuring the corrosion (also called
1283:
during concrete placement. CPF has been used in environments to combat the effects of
3150: 3140: 3036: 3000: 2962: 2935: 2830: 2767: 2733: 2616: 2579: 2451: 2422: 2178: 1568:, creating severe structural problems. It is one of the most common failure modes of 1558: 1517: 1388: 1085: 961: 939: 874: 857: 840: 722: 706: 702: 685: 600: 480: 345: 171: 31: 2779: 1666:, normal glass does form sub-microscopic flaws when exposed to moisture. Due to its 2759: 2728:
JE Breakell, M Siegwart, K Foster, D Marshall, M Hodgson, R Cottis, S Lyon (2005).
2608: 2384: – Field of engineering dealing with designing materials that resist corrosion 1801: 1762: 1754: 1407: 1069: 998: 882: 800: 662: 537: 528:
Often, it is possible to chemically remove the products of corrosion. For example,
341: 3052: 2396: – Gradual destruction of materials by chemical reaction with its environment 1564:
Similarly, corrosion of concrete-covered steel and iron can cause the concrete to
1275:
Controlled permeability formwork (CPF) is a method of preventing the corrosion of
3059: 3030: 2994: 2956: 2505: 2316: 1663: 1314: 1228: 1133: 1039:(CO) in the vapor phase. This graphite layer is then thought to form metastable M 1036: 647: 549: 529: 492: 453: 448:, the more active metal (the anode) corrodes at an accelerated rate and the more 321: 314: 144: 1757:
can slow these process very effectively, and can be as simple as a UV-absorbing
1013:
can form in the deposits of corrosion products, leading to localized corrosion.
2549: 2522: 2472: 1750: 1746: 1686: 1682: 1368: 1280: 1137: 990: 584: 407: 2763: 1662:
to reduce its solubility in water; though it is not nearly as soluble as pure
3165: 2475: – Tabular arrangement of the chemical elements ordered by atomic number 2336: 2304: 1797: 1655: 1650: 1554: 1550: 1106: 1097: 1031: 1026: 986: 927: 886: 445: 392: 391:
oxygen at that spot in presence of H (which is believed to be available from
231: 3154: 964:
is also commonly used to produce controlled oxide nanostructures, including
2932:
When Glass Meets Pharma: Insights about Glass as Primary Packaging Material
2859: 2771: 2620: 2332: 2191: 1766: 1318: 1221: 1157: 909: 743:
of several types, depending upon conditions. While the corrosion pits only
727: 583:
The materials most resistant to corrosion are those for which corrosion is
523: 497:
In any given environment (one standard medium is aerated, room-temperature
475:, etc.) affect galvanic corrosion. The surface area ratio of the anode and 411: 2730:
Management of Accelerated Low Water Corrosion in Steel Maritime Structures
2612: 787:
Sensitized metallic microstructure, showing wider intergranular boundaries
27:
Gradual destruction of materials by chemical reaction with its environment
3134: 3101: 3035:. D.E. Clark, B.K. Zoitos (eds.), William Andrew Publishing/Noyes (1992) 2676:"Different Types of Corrosion: Pitting Corrosion - Causes and Prevention" 2312: 1726: 1711: 1284: 1191: 1060: 1035:
deposition of a graphite layer on the surface of the metal, usually from
949: 804: 576: 464: 449: 441: 2493: – Measure of the tendency of a substance to gain or lose electrons 2487: – Chemical reaction in which oxidation states of atoms are changed 2161: 1678: 1169:
If the environment is controlled (especially in recirculating systems),
2827:
Fundamentals of corrosion – Mechanisms, Causes and Preventative Methods
2146: 2020:{\displaystyle \mathrm {NR} x_{i}=2\rho {\sqrt {\frac {D_{i}}{\pi t}}}} 1617: in this section. Unsourced material may be challenged and removed. 1309:. Cathodic protection systems are most commonly used to protect steel 1199: 1175: 1055: 849:
Corrosion in the crevice between the tube and tube sheet (both made of
744: 2528: 2411: 1805: 1410:
corroded extremely rapidly after only five months of outside exposure
1376: 1232: 1211: 1187: 1183: 1102: 965: 823:
Special alloys, either with low carbon content or with added carbon "
643: 620: 608: 364: 317: 3053:
Calculation of the Chemical Durability (Hydrolytic Class) of Glasses
2636:"Statistical study on the corrosion of mild steel in saline mediums" 2635: 2448: – Investigation of failures associated with legal intervention 2187:
Amount of 0.01M HCl needed to neutralize extracted basic oxides, mL
1592: 1329: 865:
commonly used to rank a material's resistance to crevice corrosion.
302: 42: 2748: 1742: 1254: 878: 792: 674: 670: 666: 651: 616: 592: 498: 472: 468: 384: 349: 191: 161: 1402: 572: 2496: 2425: – Tendency of an atom to attract a shared pair of electrons 2357: – metal corrosion occurring in the presence of anoxic water 1758: 1698: 1667: 1646: 1351: 1198:, and a wide range of specially designed chemicals that resemble 1150: 1125: 828: 796: 748:
sharp tips of extremely long and narrow corrosion pits can cause
655: 612: 476: 415: 329: 284: 186: 2852:"Corrosion costs and preventive strategies in the United States" 2311:, Fiolax). Glass of this class contains essential quantities of 1846:(days), and weight fraction content of the element in the glass 1785: 299:
is the field dedicated to controlling and preventing corrosion.
1774: 1572: 824: 689: 325: 2550:"Corrosion | Oxidation, Electrochemical, Rusting | Britannica" 1649:
materials are almost entirely immune to corrosion. The strong
997:
are active in the absence of oxygen (anaerobic); they produce
2484: 2463: – Reduction in ductility of a metal exposed to hydrogen 2308: 2295:
Usual glasses are differentiated into the following classes:
1738: 1734: 1565: 1288: 1276: 1129: 1073: 736: 681: 678: 460: 388: 380: 356: 337: 306: 292: 288: 2794:"The sacrificial anode: what is it? When should you replace" 1216: 1202:(i.e., long-chain organic molecules with ionic end groups). 139: 2849: 1545: 1146: 901: 795:, at least 11.5%). Because of the elevated temperatures of 604: 588: 333: 236: 1918:{\displaystyle \mathrm {NR} _{i}={\frac {M_{i}}{Sf_{i}t}}} 579:
do not naturally corrode, even on a geological time scale.
410:
from air into water in moist air condition of atmosphere.
1718: 779:
Normal microstructure of Type 304 stainless steel surface
514:
and is useful in predicting and understanding corrosion.
3032:
Corrosion of Glass, Ceramics and Ceramic Superconductors
1358: 2858:. Federal Highway Administration (FHWA). Archived from 2525: – Material degradation due to corrosion and wear. 2499: – form of corrosion applicable to stainless steel 2398:
Pages displaying short descriptions of redirect targets
2390: – Corrosion of materials occurring in outer space 2377:
Pages displaying short descriptions of redirect targets
1521:
The collapsed Silver Bridge, as seen from the Ohio side
639: 853:) of a heat exchanger in a seawater desalination plant 2999:. New York: Nova Science Publishers. p. 100 ff. 2469: – Noncontact variant of atomic force microscopy 2094: 1965: 1864: 1433: 2598: 2501:
Pages displaying wikidata descriptions as a fallback
2407:
Pages displaying wikidata descriptions as a fallback
2368:
Pages displaying wikidata descriptions as a fallback
2359:
Pages displaying wikidata descriptions as a fallback
1414:
The formation of an oxide layer is described by the
695: 2519: – Growth of cracks in a corrosive environment 1794:to certain chemically-aggressive liquids or gases. 1264: 67:. Unsourced material may be challenged and removed. 2456:Pages displaying short descriptions with no spaces 2124: 2019: 1917: 1465: 764: 731:Diagram showing cross-section of pitting corrosion 1257:can be used to inhibit mild steel corrosion from 3163: 1333:Sacrificial anode attached to the hull of a ship 3062:. Glassproperties.com. Retrieved on 2012-07-15. 2705:"The effect of sulphuric acid on storage tanks" 2375: – Warning symbol on locations or products 1338:steel, and eventually it must be replaced. The 1324: 313:In the most common use of the word, this means 3106:International Organization for Standardization 2418:Electrical resistivity measurement of concrete 2366: – bacterially-induced oxidation of metal 1500:is the surface area of the metal exposed, and 619:, which releases large amounts of energy upon 2996:New Developments in Glassy Nuclear Wasteforms 1279:by naturally enhancing the durability of the 933: 692:can often circumvent passivation mechanisms. 261: 2437: – Resolved paradox in electrochemistry 1050: 904:in the steel reacts with the acid to form a 463:, types of metal, and operating conditions ( 2414: – Used for steel corrosion resistance 2824: 2441:Fibre-reinforced plastic tanks and vessels 543: 268: 254: 3139:. Upper Saddle River, NJ: Prentice Hall. 2992: 2954: 2902: 2682:. WebCorr Corrosion Consulting Services. 2650:"Methods of Protecting Against Corrosion" 2125:{\displaystyle \mathrm {NR} h=\rho r_{h}} 1834:(g) to the water-contacting surface area 1633:Learn how and when to remove this message 1582: 1367:(ICCP) systems use anodes connected to a 1178:(Roman water systems are known for their 127:Learn how and when to remove this message 2829:. Taylor and Francis Group. p. 25. 2160: 2156: 1800:is the corrosion of silicate glasses in 1784: 1677: 1673: 1516: 1488:is the weight loss of the metal in time 1401: 1328: 1215: 1112: 1101: 1054: 844: 782: 774: 726: 571: 431: 301: 143:Corrosion on exposed metal, including a 138: 2929: 1506:is the density of the metal (in g/cm). 1466:{\displaystyle R={\frac {kW}{\rho At}}} 587:unfavorable. Any corrosion products of 30:For the Front Line Assembly album, see 14: 3164: 3136:Principles and prevention of corrosion 2576:Principles and prevention of corrosion 2512:Scanning vibrating electrode technique 1294: 971: 567: 360: 3132: 2911:from the original on 29 December 2017 2656:from the original on 10 February 2012 2573: 1780: 1365:Impressed current cathodic protection 1359:Impressed current cathodic protection 1079: 684:. Exposure to a liquid metal such as 421: 2652:. Piping Technology & Products. 2479:Pitting resistance equivalent number 2082:is the density of the glass (g/cm). 1804:. It is governed by two mechanisms: 1615:adding citations to reliable sources 1586: 1397: 1382: 1164: 868: 834: 716: 517: 65:adding citations to reliable sources 36: 2800:. Hydro Solution. 20 January 2020. 1247: 1091: 24: 3126: 2907:. GSG Group, Inc. Dan Robles, PE. 2633: 2435:Faraday paradox (electrochemistry) 2099: 2096: 1970: 1967: 1870: 1867: 1749:is a well-known problem affecting 1512: 486: 25: 3193: 2958:Fundamentals of inorganic glasses 2856:CC Technologies Laboratories, Inc 2531: – Type of corrosion in zinc 1710:) are intentionally swelled with 1224:is anodized with a yellow finish. 900:) flows through steel pipes, the 696:Corrosion in passivated materials 501:), one metal will be either more 459:Factors such as relative size of 2993:Ojovan, M.I.; Lee, W.E. (2007). 2961:. Gulf Professional Publishing. 1591: 1271:Controlled permeability formwork 1265:Controlled permeability formwork 1020: 599:Some metals have naturally slow 556:(oxidation) including painting, 554:protecting metals from corrosion 41: 3112:from the original on 2018-03-14 3094: 3073:"Vapor Hydration Testing (VHT)" 3065: 3046: 3024: 3013:from the original on 2023-02-14 2986: 2975:from the original on 2023-02-14 2948: 2923: 2896: 2884:from the original on 2014-09-11 2866: 2843: 2818: 2804:from the original on 2022-09-13 2786: 2711:from the original on 2019-09-13 2686:from the original on 2022-09-13 2601:New England Journal of Medicine 1602:needs additional citations for 765:Weld decay and knifeline attack 406:) formed due to dissolution of 52:needs additional citations for 2825:Schweitzer, Philip A. (2010). 2742: 2732:, Volume 634 of CIRIA Series, 2722: 2697: 2668: 2642: 2627: 2592: 2567: 2542: 1654:protection in ceramics is the 1527:Federal Highway Administration 1205: 626: 332:, the formation of red-orange 291:into a more chemically stable 13: 1: 2536: 2508: – Corrosion test method 2467:Kelvin probe force microscope 2429:Environmental stress fracture 2364:Bacterial anaerobic corrosion 1373:cathodic protection rectifier 1236:to protect the damaged area. 1117:Corroding steel gantry on an 642:is seen in such materials as 564:, and combinations of these. 552:). There are various ways of 320:of metal in reaction with an 2874:"NACE Corrosion Costs Study" 1325:Sacrificial anode protection 958:compacted oxide layer glazes 7: 2752:Appl. Microbiol. Biotechnol 2347: 217:Metal-induced embrittlement 10: 3198: 1386: 1298: 1268: 1209: 1095: 1024: 1007:biogenic sulfide corrosion 975: 945:High-temperature corrosion 937: 934:High-temperature corrosion 838: 768: 720: 630: 521: 490: 425: 328:, hydrogen, or hydroxide. 207:Liquid metal embrittlement 29: 2930:Boltres, Bettine (2015). 2764:10.1007/s00253-003-1403-7 2517:Stress corrosion cracking 1259:sulfate-reducing bacteria 1132:, and the application of 1051:Protection from corrosion 995:Sulfate-reducing bacteria 711:stress corrosion cracking 222:Stress corrosion cracking 3133:Jones, Denny A. (1996). 2955:Varshneya, A.K. (1994). 2574:Jones, Denny A. (1991). 2431: – Material failure 2403:Cyclic corrosion testing 1371:power source (such as a 851:type 316 stainless steel 817:type 304 stainless steel 287:that converts a refined 154:Mechanical failure modes 1003:sulfide stress cracking 827:" such as titanium and 771:Intergranular corrosion 633:Passivation (chemistry) 544:Resistance to corrosion 227:Sulfide stress cracking 2461:Hydrogen embrittlement 2166: 2126: 2021: 1919: 1840:(cm), time of contact 1790: 1690: 1583:Corrosion in nonmetals 1532:gross domestic product 1522: 1467: 1411: 1334: 1317:, ships, and offshore 1313:and tanks; steel pier 1225: 1122: 1110: 1064: 854: 788: 780: 732: 580: 437: 310: 197:Hydrogen embrittlement 148: 2613:10.1056/nejmra1810769 2382:Corrosion engineering 2373:Chemical hazard label 2321:alkaline earth oxides 2164: 2157:Glass corrosion tests 2127: 2022: 1920: 1788: 1771:Plastic shopping bags 1681: 1674:Corrosion of polymers 1520: 1468: 1405: 1332: 1219: 1116: 1105: 1058: 848: 786: 778: 730: 575: 558:hot-dip galvanization 435: 305: 297:Corrosion engineering 142: 3083:on December 14, 2007 2880:. NACE. 2013-11-12. 2446:Forensic engineering 2343:DIN 12111 (ISO 719). 2329:alkaline earth oxide 2301:borosilicate glasses 2092: 1963: 1862: 1611:improve this article 1553:disaster of 1967 in 1431: 1307:electrochemical cell 1171:corrosion inhibitors 1136:are the most common 919:) and hydrogen gas ( 885:. For example, when 799:and heat treatment, 750:stress concentration 61:improve this article 2680:corrosionclinic.com 2491:Reduction potential 2394:Corrosive substance 2355:Anaerobic corrosion 2171:chemical durability 1694:Polymer degradation 1570:reinforced concrete 1541:Mianus River Bridge 1424:) is calculated as 1344:electrode potential 1301:Cathodic protection 1295:Cathodic protection 1242:panel edge staining 1196:conducting polymers 1119:electrified railway 1011:Concentration cells 983:Microbial corrosion 978:Microbial corrosion 972:Microbial corrosion 568:Intrinsic chemistry 562:cathodic protection 373:chromate conversion 212:Mechanical overload 3058:2007-11-05 at the 2554:www.britannica.com 2388:Corrosion in space 2167: 2145:is the stationary 2122: 2017: 1915: 1791: 1781:Corrosion of glass 1723:ionizing radiation 1691: 1523: 1463: 1412: 1335: 1226: 1222:climbing descender 1123: 1111: 1080:Surface treatments 1065: 855: 789: 781: 733: 581: 481:sacrificial anodes 438: 428:Galvanic corrosion 422:Galvanic corrosion 311: 149: 2941:978-3-87193-432-2 2934:. Editio Cantor. 2836:978-1-4200-6770-5 2798:hydrosolution.com 2607:(18): 1739–1748. 2585:978-0-02-361215-2 2452:Hydrogen analyzer 2423:Electronegativity 2274: 2273: 2015: 2014: 1913: 1802:aqueous solutions 1755:Plastic additives 1643: 1642: 1635: 1559:suspension bridge 1461: 1408:neodymium magnets 1398:Rate of corrosion 1389:Anodic protection 1383:Anodic protection 1165:Reactive coatings 1070:neodymium magnets 962:Thermal oxidation 940:Thermal oxidation 875:chemical industry 869:Hydrogen grooving 858:Crevice corrosion 841:Crevice corrosion 835:Crevice corrosion 801:chromium carbides 723:Pitting corrosion 717:Pitting corrosion 707:crevice corrosion 703:pitting corrosion 663:Pourbaix diagrams 601:reaction kinetics 585:thermodynamically 518:Corrosion removal 278: 277: 172:Corrosion fatigue 137: 136: 129: 111: 32:Corrosion (album) 16:(Redirected from 3189: 3158: 3121: 3120: 3118: 3117: 3098: 3092: 3091: 3089: 3088: 3079:. Archived from 3069: 3063: 3050: 3044: 3028: 3022: 3021: 3019: 3018: 2990: 2984: 2983: 2981: 2980: 2952: 2946: 2945: 2927: 2921: 2920: 2918: 2916: 2900: 2894: 2893: 2891: 2889: 2870: 2864: 2863: 2847: 2841: 2840: 2822: 2816: 2815: 2810: 2809: 2790: 2784: 2783: 2746: 2740: 2726: 2720: 2719: 2717: 2716: 2701: 2695: 2694: 2692: 2691: 2672: 2666: 2665: 2663: 2661: 2646: 2640: 2639: 2631: 2625: 2624: 2596: 2590: 2589: 2571: 2565: 2564: 2562: 2561: 2546: 2502: 2457: 2408: 2399: 2378: 2369: 2360: 2317:aluminium oxides 2184: 2183: 2177:0.01 mol/L 2144: 2131: 2129: 2128: 2123: 2121: 2120: 2102: 2081: 2075: 2053: 2047: 2036: 2026: 2024: 2023: 2018: 2016: 2013: 2005: 2004: 1995: 1994: 1983: 1982: 1973: 1950: 1924: 1922: 1921: 1916: 1914: 1912: 1908: 1907: 1894: 1893: 1884: 1879: 1878: 1873: 1854: 1845: 1839: 1833: 1824: 1763:titanium dioxide 1737:such as oxygen, 1638: 1631: 1627: 1624: 1618: 1595: 1587: 1525:In 2002, the US 1505: 1499: 1493: 1487: 1481: 1472: 1470: 1469: 1464: 1462: 1460: 1449: 1441: 1423: 1416:Deal–Grove model 1291:, and abrasion. 1248:Biofilm coatings 1229:Aluminium alloys 1180:mineral deposits 1092:Applied coatings 1059:The US military 999:hydrogen sulfide 968:and thin films. 925: 918: 899: 805:grain boundaries 803:can form in the 538:electropolishing 405: 355:Many structural 270: 263: 256: 151: 150: 132: 125: 121: 118: 112: 110: 69: 45: 37: 21: 3197: 3196: 3192: 3191: 3190: 3188: 3187: 3186: 3177:Glass chemistry 3162: 3161: 3147: 3129: 3127:Further reading 3124: 3115: 3113: 3102:"Procedure 719" 3100: 3099: 3095: 3086: 3084: 3071: 3070: 3066: 3060:Wayback Machine 3051: 3047: 3029: 3025: 3016: 3014: 3007: 2991: 2987: 2978: 2976: 2969: 2953: 2949: 2942: 2928: 2924: 2914: 2912: 2903:Daniel Robles. 2901: 2897: 2887: 2885: 2872: 2871: 2867: 2848: 2844: 2837: 2823: 2819: 2807: 2805: 2792: 2791: 2787: 2747: 2743: 2727: 2723: 2714: 2712: 2703: 2702: 2698: 2689: 2687: 2674: 2673: 2669: 2659: 2657: 2648: 2647: 2643: 2634:Nwagha, Nzube. 2632: 2628: 2597: 2593: 2586: 2572: 2568: 2559: 2557: 2548: 2547: 2543: 2539: 2534: 2506:Salt spray test 2500: 2455: 2406: 2397: 2376: 2367: 2358: 2350: 2291: 2287: 2283: 2279: 2203: 2199:equivalent, μg 2198: 2195: 2159: 2142: 2137: 2116: 2112: 2095: 2093: 2090: 2089: 2077: 2073: 2063: 2055: 2049: 2046: 2038: 2032: 2006: 2000: 1996: 1993: 1978: 1974: 1966: 1964: 1961: 1960: 1954: 1945: 1936: 1930: 1903: 1899: 1895: 1889: 1885: 1883: 1874: 1866: 1865: 1863: 1860: 1859: 1852: 1847: 1841: 1835: 1831: 1826: 1823: 1817: 1789:Glass corrosion 1783: 1725:(most commonly 1676: 1664:sodium silicate 1660:soda–lime glass 1639: 1628: 1622: 1619: 1608: 1596: 1585: 1557:, when a steel 1515: 1513:Economic impact 1501: 1495: 1489: 1483: 1482:is a constant, 1477: 1450: 1442: 1440: 1432: 1429: 1428: 1419: 1400: 1391: 1385: 1361: 1327: 1303: 1297: 1273: 1267: 1250: 1214: 1208: 1167: 1143:galvanic couple 1100: 1094: 1082: 1053: 1046: 1042: 1037:carbon monoxide 1029: 1023: 991:chemoautotrophs 980: 974: 942: 936: 924: 920: 917: 913: 898: 894: 890: 871: 843: 837: 809:galvanic couple 773: 767: 725: 719: 698: 648:stainless steel 635: 629: 570: 550:galvanic series 546: 532:in the form of 530:phosphoric acid 526: 520: 512:galvanic series 495: 493:Galvanic series 489: 487:Galvanic series 454:galvanic series 446:galvanic couple 430: 424: 404: 400: 396: 315:electrochemical 285:natural process 274: 133: 122: 116: 113: 70: 68: 58: 46: 35: 28: 23: 22: 15: 12: 11: 5: 3195: 3185: 3184: 3179: 3174: 3160: 3159: 3145: 3128: 3125: 3123: 3122: 3093: 3064: 3045: 3023: 3006:978-1600217838 3005: 2985: 2967: 2947: 2940: 2922: 2895: 2865: 2862:on 2011-07-08. 2842: 2835: 2817: 2785: 2758:(2): 275–283. 2741: 2721: 2696: 2667: 2641: 2626: 2591: 2584: 2566: 2540: 2538: 2535: 2533: 2532: 2526: 2523:Tribocorrosion 2520: 2514: 2509: 2503: 2494: 2488: 2482: 2476: 2473:Periodic table 2470: 2464: 2458: 2454: – Device 2449: 2443: 2438: 2432: 2426: 2420: 2415: 2409: 2400: 2391: 2385: 2379: 2370: 2361: 2351: 2349: 2346: 2345: 2344: 2340: 2331:and primarily 2324: 2289: 2285: 2281: 2277: 2272: 2271: 2268: 2265: 2261: 2260: 2257: 2254: 2250: 2249: 2246: 2243: 2239: 2238: 2235: 2232: 2228: 2227: 2224: 2221: 2217: 2216: 2213: 2210: 2206: 2205: 2200: 2193: 2188: 2158: 2155: 2140: 2134: 2133: 2119: 2115: 2111: 2108: 2105: 2101: 2098: 2068: 2059: 2042: 2029: 2028: 2012: 2009: 2003: 1999: 1992: 1989: 1986: 1981: 1977: 1972: 1969: 1952: 1941: 1932: 1927: 1926: 1911: 1906: 1902: 1898: 1892: 1888: 1882: 1877: 1872: 1869: 1850: 1829: 1819: 1782: 1779: 1751:natural rubber 1747:Ozone cracking 1687:natural rubber 1683:Ozone cracking 1675: 1672: 1651:chemical bonds 1641: 1640: 1599: 1597: 1590: 1584: 1581: 1514: 1511: 1474: 1473: 1459: 1456: 1453: 1448: 1445: 1439: 1436: 1399: 1396: 1387:Main article: 1384: 1381: 1360: 1357: 1326: 1323: 1299:Main article: 1296: 1293: 1269:Main article: 1266: 1263: 1249: 1246: 1210:Main article: 1207: 1204: 1166: 1163: 1138:anti-corrosion 1096:Main article: 1093: 1090: 1086:Achilles' heel 1081: 1078: 1052: 1049: 1044: 1040: 1025:Main article: 1022: 1019: 987:microorganisms 976:Main article: 973: 970: 935: 932: 922: 915: 896: 892: 870: 867: 839:Main article: 836: 833: 769:Main article: 766: 763: 741:corrosion pits 721:Main article: 718: 715: 697: 694: 631:Main article: 628: 625: 569: 566: 545: 542: 522:Main article: 519: 516: 491:Main article: 488: 485: 426:Main article: 423: 420: 408:carbon dioxide 402: 398: 276: 275: 273: 272: 265: 258: 250: 247: 246: 245: 244: 239: 234: 229: 224: 219: 214: 209: 204: 199: 194: 189: 184: 179: 174: 169: 164: 156: 155: 135: 134: 49: 47: 40: 26: 9: 6: 4: 3: 2: 3194: 3183: 3180: 3178: 3175: 3173: 3170: 3169: 3167: 3156: 3152: 3148: 3146:0-13-359993-0 3142: 3138: 3137: 3131: 3130: 3111: 3107: 3103: 3097: 3082: 3078: 3074: 3068: 3061: 3057: 3054: 3049: 3042: 3038: 3034: 3033: 3027: 3012: 3008: 3002: 2998: 2997: 2989: 2974: 2970: 2964: 2960: 2959: 2951: 2943: 2937: 2933: 2926: 2910: 2906: 2899: 2883: 2879: 2875: 2869: 2861: 2857: 2853: 2846: 2838: 2832: 2828: 2821: 2814: 2803: 2799: 2795: 2789: 2781: 2777: 2773: 2769: 2765: 2761: 2757: 2753: 2745: 2739: 2738:0-86017-634-7 2735: 2731: 2725: 2710: 2706: 2700: 2685: 2681: 2677: 2671: 2655: 2651: 2645: 2637: 2630: 2622: 2618: 2614: 2610: 2606: 2602: 2595: 2587: 2581: 2577: 2570: 2555: 2551: 2545: 2541: 2530: 2527: 2524: 2521: 2518: 2515: 2513: 2510: 2507: 2504: 2498: 2495: 2492: 2489: 2486: 2483: 2480: 2477: 2474: 2471: 2468: 2465: 2462: 2459: 2453: 2450: 2447: 2444: 2442: 2439: 2436: 2433: 2430: 2427: 2424: 2421: 2419: 2416: 2413: 2410: 2404: 2401: 2395: 2392: 2389: 2386: 2383: 2380: 2374: 2371: 2365: 2362: 2356: 2353: 2352: 2341: 2338: 2337:calcium oxide 2334: 2330: 2325: 2322: 2318: 2314: 2310: 2306: 2302: 2298: 2297: 2296: 2293: 2269: 2266: 2263: 2262: 2258: 2255: 2252: 2251: 2247: 2244: 2241: 2240: 2236: 2233: 2230: 2229: 2225: 2222: 2219: 2218: 2214: 2211: 2208: 2207: 2201: 2197: 2189: 2186: 2185: 2182: 2180: 2174: 2172: 2163: 2154: 2150: 2148: 2143: 2117: 2113: 2109: 2106: 2103: 2088: 2087: 2086: 2083: 2080: 2071: 2067: 2062: 2058: 2052: 2045: 2041: 2035: 2010: 2007: 2001: 1997: 1990: 1987: 1984: 1979: 1975: 1959: 1958: 1957: 1949: 1944: 1940: 1935: 1909: 1904: 1900: 1896: 1890: 1886: 1880: 1875: 1858: 1857: 1856: 1853: 1844: 1838: 1832: 1822: 1814: 1811: 1807: 1803: 1799: 1798:Glass disease 1795: 1787: 1778: 1776: 1772: 1768: 1764: 1760: 1756: 1753:for example. 1752: 1748: 1744: 1740: 1736: 1732: 1731:free radicals 1728: 1724: 1720: 1715: 1713: 1709: 1703: 1700: 1695: 1688: 1684: 1680: 1671: 1669: 1665: 1661: 1657: 1652: 1648: 1637: 1634: 1626: 1616: 1612: 1606: 1605: 1600:This section 1598: 1594: 1589: 1588: 1580: 1576: 1574: 1571: 1567: 1562: 1560: 1556: 1555:West Virginia 1552: 1551:Silver Bridge 1547: 1542: 1536: 1533: 1528: 1519: 1510: 1507: 1504: 1498: 1492: 1486: 1480: 1457: 1454: 1451: 1446: 1443: 1437: 1434: 1427: 1426: 1425: 1422: 1417: 1409: 1404: 1395: 1390: 1380: 1378: 1374: 1370: 1366: 1356: 1353: 1348: 1347:galvanizing. 1345: 1341: 1331: 1322: 1320: 1319:oil platforms 1316: 1312: 1308: 1302: 1292: 1290: 1287:, chlorides, 1286: 1282: 1278: 1277:reinforcement 1272: 1262: 1260: 1256: 1245: 1243: 1237: 1234: 1230: 1223: 1218: 1213: 1203: 1201: 1197: 1193: 1189: 1185: 1181: 1177: 1172: 1162: 1159: 1154: 1152: 1148: 1144: 1139: 1135: 1131: 1127: 1120: 1115: 1108: 1104: 1099: 1098:Galvanization 1089: 1087: 1077: 1075: 1071: 1062: 1057: 1048: 1038: 1033: 1032:Metal dusting 1028: 1027:Metal dusting 1021:Metal dusting 1018: 1014: 1012: 1008: 1004: 1000: 996: 992: 988: 984: 979: 969: 967: 963: 959: 953: 951: 946: 941: 931: 929: 928:vicious cycle 911: 907: 903: 888: 887:sulfuric acid 884: 880: 876: 866: 862: 859: 852: 847: 842: 832: 830: 826: 821: 818: 813: 810: 806: 802: 798: 794: 785: 777: 772: 762: 758: 756: 751: 746: 742: 738: 729: 724: 714: 712: 708: 704: 693: 691: 687: 683: 680: 676: 672: 668: 664: 659: 657: 653: 649: 645: 641: 634: 624: 622: 618: 614: 610: 606: 602: 597: 594: 590: 586: 578: 574: 565: 563: 559: 555: 551: 541: 539: 535: 531: 525: 515: 513: 508: 504: 500: 494: 484: 482: 478: 474: 470: 466: 462: 457: 455: 451: 447: 443: 434: 429: 419: 417: 413: 409: 394: 393:carbonic acid 390: 386: 382: 376: 374: 370: 366: 362: 358: 353: 351: 347: 343: 339: 335: 331: 327: 323: 319: 316: 308: 304: 300: 298: 294: 290: 286: 282: 271: 266: 264: 259: 257: 252: 251: 249: 248: 243: 240: 238: 235: 233: 232:Thermal shock 230: 228: 225: 223: 220: 218: 215: 213: 210: 208: 205: 203: 200: 198: 195: 193: 190: 188: 185: 183: 180: 178: 175: 173: 170: 168: 165: 163: 160: 159: 158: 157: 153: 152: 146: 141: 131: 128: 120: 109: 106: 102: 99: 95: 92: 88: 85: 81: 78: –  77: 73: 72:Find sources: 66: 62: 56: 55: 50:This article 48: 44: 39: 38: 33: 19: 18:Corrosiveness 3135: 3114:. Retrieved 3105: 3096: 3085:. Retrieved 3081:the original 3076: 3067: 3048: 3031: 3026: 3015:. Retrieved 2995: 2988: 2977:. Retrieved 2957: 2950: 2931: 2925: 2913:. Retrieved 2898: 2886:. Retrieved 2877: 2868: 2860:the original 2855: 2845: 2826: 2820: 2812: 2806:. Retrieved 2797: 2788: 2755: 2751: 2744: 2729: 2724: 2713:. Retrieved 2699: 2688:. Retrieved 2679: 2670: 2658:. Retrieved 2644: 2629: 2604: 2600: 2594: 2575: 2569: 2558:. Retrieved 2556:. 2023-08-03 2553: 2544: 2333:sodium oxide 2313:boron oxides 2294: 2275: 2175: 2170: 2168: 2151: 2138: 2135: 2084: 2078: 2069: 2065: 2060: 2056: 2050: 2043: 2039: 2033: 2030: 1947: 1942: 1938: 1933: 1928: 1848: 1842: 1836: 1827: 1820: 1815: 1796: 1792: 1767:carbon black 1716: 1712:plasticizers 1704: 1692: 1644: 1629: 1620: 1609:Please help 1604:verification 1601: 1577: 1563: 1537: 1524: 1508: 1502: 1496: 1490: 1484: 1478: 1475: 1420: 1413: 1392: 1362: 1349: 1340:polarization 1336: 1304: 1274: 1251: 1238: 1227: 1168: 1158:polyurethane 1155: 1124: 1083: 1072:, which can 1066: 1061:shrink-wraps 1030: 1015: 981: 954: 943: 910:iron sulfate 872: 863: 856: 822: 814: 790: 759: 740: 734: 699: 660: 636: 598: 582: 577:Gold nuggets 547: 533: 527: 524:Rust removal 511: 506: 502: 496: 458: 439: 412:Hydrogen ion 377: 354: 312: 280: 279: 166: 123: 114: 104: 97: 90: 83: 71: 59:Please help 54:verification 51: 2915:10 December 2878:Cor-Pro.com 1727:ultraviolet 1668:brittleness 1285:carbonation 1206:Anodization 1200:surfactants 1192:polyaniline 950:sulfidation 908:coating of 906:passivation 627:Passivation 534:naval jelly 465:temperature 450:noble metal 442:electrolyte 369:passivation 117:August 2022 76:"Corrosion" 3182:Metallurgy 3166:Categories 3116:2012-07-15 3087:2012-07-15 3041:081551283X 3017:2016-01-05 2979:2016-01-05 2968:0127149708 2808:2022-09-13 2715:2019-10-27 2690:2022-09-13 2660:31 January 2560:2023-08-08 2537:References 2284:glass or P 2267:> 1085 2202:Hydrolytic 2190:Extracted 2147:hydrolysis 1810:controlled 1233:nanometers 1188:phosphates 1176:hard water 1107:Galvanized 1001:, causing 989:, usually 938:See also: 87:newspapers 3172:Corrosion 2529:Zinc pest 2412:Dimetcote 2264:> 3.5 2256:620-1085 2242:0.85-2.0 2231:0.2-0.85 2209:< 0.1 2110:ρ 2037:is time, 2008:π 1991:ρ 1806:diffusion 1735:oxidizers 1658:added to 1623:June 2022 1452:ρ 1377:cast iron 1311:pipelines 1212:Anodizing 1184:chromates 966:nanowires 677:does for 644:aluminium 621:oxidation 609:magnesium 385:electrons 365:diffusion 318:oxidation 281:Corrosion 167:Corrosion 3155:32664979 3110:Archived 3108:. 1985. 3077:Vscht.cz 3056:Archived 3011:Archived 2973:Archived 2909:Archived 2882:Archived 2802:Archived 2780:20734181 2772:12898064 2709:Archived 2684:Archived 2654:Archived 2621:32348645 2348:See also 2253:2.0-3.5 2245:264-620 2220:0.1-0.2 2212:< 31 1743:chlorine 1729:light), 1255:biofilms 1194:, other 1130:painting 879:hydrogen 793:chromium 745:nucleate 675:concrete 671:fluoride 667:chloride 652:titanium 617:graphite 593:platinum 505:or more 499:seawater 473:salinity 469:humidity 350:polymers 346:ceramics 324:such as 242:Yielding 192:Fracture 162:Buckling 2888:16 June 2497:Rouging 2303:(e.g., 2292:glass. 2270:> 5 2234:62-264 2048:is the 1761:(e.g., 1759:pigment 1699:entropy 1647:ceramic 1573:bridges 1352:cadmium 1151:cadmium 1126:Plating 1109:surface 883:bubbles 873:In the 829:niobium 825:getters 797:welding 688:or hot 686:mercury 656:silicon 613:cadmium 477:cathode 416:cathode 330:Rusting 322:oxidant 307:Riveted 187:Fouling 182:Fatigue 147:and nut 101:scholar 3153:  3143:  3039:  3003:  2965:  2938:  2833:  2778:  2770:  2736:  2619:  2582:  2223:31-62 2204:class 2136:where 2076:, and 2031:where 1775:litter 1741:, and 1733:, and 1689:tubing 1476:where 1406:These 1134:enamel 737:anions 709:, and 690:solder 654:, and 611:, and 507:active 389:reduce 383:. The 357:alloys 338:oxides 326:oxygen 202:Impact 103:  96:  89:  82:  74:  2776:S2CID 2485:Redox 2309:Pyrex 2305:Duran 1739:ozone 1708:vinyl 1645:Most 1566:spall 1315:piles 1289:frost 1281:cover 1220:This 1074:spall 755:fails 682:rebar 679:steel 503:noble 461:anode 381:anode 342:salts 293:oxide 289:metal 283:is a 177:Creep 108:JSTOR 94:books 3151:OCLC 3141:ISBN 3037:ISBN 3001:ISBN 2963:ISBN 2936:ISBN 2917:2012 2890:2014 2831:ISBN 2768:PMID 2734:ISBN 2662:2012 2617:PMID 2580:ISBN 2335:and 2319:and 1656:lime 1546:NTSB 1147:zinc 1121:line 914:FeSO 902:iron 881:gas 605:zinc 589:gold 371:and 334:iron 237:Wear 145:bolt 80:news 2760:doi 2609:doi 2605:382 2179:HCl 2074:·10 1946:+NR 1937:=NR 1769:). 1765:or 1719:DNA 1685:in 1613:by 1182:), 1149:or 591:or 361:pit 348:or 340:or 63:by 3168:: 3149:. 3104:. 3075:. 3009:. 2971:. 2876:. 2854:. 2811:. 2796:. 2774:. 2766:. 2756:64 2754:. 2707:. 2678:. 2615:. 2603:. 2552:. 2315:, 2307:, 2259:5 2248:4 2237:3 2226:2 2215:1 2192:Na 2064:= 1931:NR 1855:: 1818:NR 1777:. 1745:. 1721:: 1494:, 1369:DC 1321:. 1261:. 1190:, 1186:, 1128:, 1009:. 948:(" 895:SO 713:. 705:, 658:. 650:, 646:, 640:pH 607:, 560:, 483:. 471:, 467:, 418:. 401:CO 3157:. 3119:. 3090:. 3043:. 3020:. 2982:. 2944:. 2919:. 2892:. 2839:. 2782:. 2762:: 2718:. 2693:. 2664:. 2638:. 2623:. 2611:: 2588:. 2563:. 2339:. 2290:5 2288:O 2286:2 2282:3 2280:O 2278:2 2196:O 2194:2 2141:h 2139:r 2132:, 2118:h 2114:r 2107:= 2104:h 2100:R 2097:N 2079:ρ 2072:0 2070:i 2066:D 2061:i 2057:D 2051:i 2044:i 2040:D 2034:t 2027:, 2011:t 2002:i 1998:D 1988:2 1985:= 1980:i 1976:x 1971:R 1968:N 1953:3 1948:h 1943:i 1939:x 1934:i 1925:. 1910:t 1905:i 1901:f 1897:S 1891:i 1887:M 1881:= 1876:i 1871:R 1868:N 1851:i 1849:f 1843:t 1837:S 1830:i 1828:M 1821:i 1808:- 1636:) 1630:( 1625:) 1621:( 1607:. 1503:ρ 1497:A 1491:t 1485:W 1479:k 1458:t 1455:A 1447:W 1444:k 1438:= 1435:R 1421:R 1045:3 1041:3 923:2 921:H 916:4 912:( 897:4 893:2 891:H 889:( 403:3 399:2 397:H 395:( 269:e 262:t 255:v 130:) 124:( 119:) 115:( 105:· 98:· 91:· 84:· 57:. 34:. 20:)

Index

Corrosiveness
Corrosion (album)

verification
improve this article
adding citations to reliable sources
"Corrosion"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message

bolt
Buckling
Corrosion
Corrosion fatigue
Creep
Fatigue
Fouling
Fracture
Hydrogen embrittlement
Impact
Liquid metal embrittlement
Mechanical overload
Metal-induced embrittlement
Stress corrosion cracking
Sulfide stress cracking
Thermal shock

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.