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The following questions are frequently asked about Corrosion.

RXN Corrosion FAQ - Q uestion and A nswer Table of Contents:


1. What are the different types of Corrosion?
2. What is Uniform Corrosion?
3. What is Electrochemical Corrosion?
4. What is Galvanic Corrosion?
5. What is Concentration Cell Corrosion?
6. What is Erosion Corrosion?
7. What is Embrittlement Corrosion?
8. What is Stress Corrosion?
9. What is Filaform Corrosion?
10. What is Corrosion Fatigue?
11. What is Intergranular Corrosion?
12. What is Fretting Corrosion?
13. What is Impingement Corrosion?
14. What is Selective Leaching Corrosion?
15. What is Chemical Reaction Corrosion?

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Q 1. What are the different types of Corrosion?
A The general types of Corrosion include uniform, electrochemical, galvanic, concentration cell, erosion, embrittlement, stress corrosion, filaform, corrosion fatigue, intergranular, fretting, impingement, dezincification, and chemical reaction.
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Q 2. What is Uniform Corrosion?
A Uniform Corrosion is metal corrosion by uniform chemical attack, as opposed to localized effects.
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Q 3. What is Electrochemical Corrosion?
A Electrochemical Corrosion occurs by chemical dissolution.
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Q 4. What is Galvanic Corrosion?
A Galvanic Corrosion is corrosion accelerated by a difference in potential between metals. The relative electrochemical potential of metals can also be used constructively to prevent corrosion. The Steel Tank Institute describes some methods of doing this in their Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage and Dispensing Systems (R892-91) .
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Q 5. What is Concentration Cell Corrosion?
A Concentration Cell Corrosion is corrosion accelerated by a difference in concentration of an ion or other dissolved substance.
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Q 6. What is Erosion Corrosion?
A Erosion Corrosion is corrosion accelerated by the action of a flowing gas or liquid.
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Q 7. What is Embrittlement Corrosion?
A Embrittlement Corrosion is corrosion that causes a ductile material to fail without localized yielding or shearing.
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Q 8. What is Stress Corrosion?
A Stress Corrosion is corrosion accelerated or activated by residual or applied stress.
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Q 9. What is Filaform Corrosion?
A Filaform Corrosion is a form of corrosion producing porosity or tunnels in the base metal.
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Q 10. What is Corrosion Fatigue?
A Corrosion Fatigue is fatigue accelerated by the presence of a corrosive environment.
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Q 11. What is Intergranular Corrosion?
A Intergranular Corrosion is corrosion which proceeds along grain boundaries.
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Q 12. What is Fretting Corrosion?
A Fretting Corrosion is metal to metal wear that is accelerated by corrosion at the metal interface.
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Q 13. What is Impingement Corrosion?
A Impingement Corrosion is corrosion accelerated by fluid impingement.
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Q 14. What is Selective Leaching Corrosion?
A Selective Leaching Corrosion is corrosion accelerated by the selective leaching of an alloying element out of the alloy matrix. The most common form of Selective Leaching Corrosion is Dezincification, the selective leaching of zinc out of the brass matrix.
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Q 15. What is Chemical Reaction Corrosion?
A Chemical Reaction Corrosion is corrosion that takes place as a result of a chemical reaction between the metal and the corrosive media.
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hits since 24 Jul 1997 - copyright (c) 1997-2012 RXN Communications - webmaster@rxn.com - Revised 5 Nov 2012