스테인리스강 입계부식
Intergranular Corrosion of Stainless Steel
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초록
Stainless steel can be classified into three categories depending on the microstructure as austeniticstainless steel, ferritic stainless steel and martensitic stainless steel. Generally, stainless steel is extremelyresistant to corrosion as the name implies. However, under specific environments, susceptibility tolocalized corrosion such as pitting, intergranular corrosion and stress corrosion cracking increases. Thispaper reviewed the state of arts on intergranular corrosion mechanisms, countermeasures on intergranularcorrosion and intergranular corrosion test methods. Intergranular corrosion is mostly related with chromiumdepletion at the grain boundary and sometimes with segregation of electroactive elements in solutionannealed stainless steel. Countermeasures on intergranular corrosion include avoiding chromium depletionby heat treatment and the addition of alloying elements. Sensitization evaluation of stainless steel wasperformed either through acid immersion test or electrochemical test. The methods were standardizedin (Japanese Industrial Standards) . Even though are useful in evaluating the degree of sensitizationfor industrial purpose but do not provide detailed information about sensitization mechanism, causeand chromium profile.
Abstract
Stainless steel can be classified into three categories depending on the microstructure as austeniticstainless steel, ferritic stainless steel and martensitic stainless steel. Generally, stainless steel is extremelyresistant to corrosion as the name implies. However, under specific environments, susceptibility tolocalized corrosion such as pitting, intergranular corrosion and stress corrosion cracking increases. Thispaper reviewed the state of arts on intergranular corrosion mechanisms, countermeasures on intergranularcorrosion and intergranular corrosion test methods. Intergranular corrosion is mostly related with chromiumdepletion at the grain boundary and sometimes with segregation of electroactive elements in solutionannealed stainless steel. Countermeasures on intergranular corrosion include avoiding chromium depletionby heat treatment and the addition of alloying elements. Sensitization evaluation of stainless steel wasperformed either through acid immersion test or electrochemical test. The methods were standardizedin (Japanese Industrial Standards) . Even though are useful in evaluating the degree of sensitizationfor industrial purpose but do not provide detailed information about sensitization mechanism, causeand chromium profile.
참고문헌 (14)
- Harold M. Cobb, "The history of stainless steel", ASM International, 11~ (2010)
- D. L. OLSON, "Prediction of austenitic weld metal microstructure and properties, Welding research supplement, 281-s", ~ (1985)
- L. Ernest, , Metall. Trans. A, 15A, pp.794~ (1984)
- J. S. Armijo, , Corrosion, 24, pp.24~ (1968)[DOI]
- L. Tan, , JOM, 68, pp.517~ (2016)[DOI]
- R. L. Plauta, , Mater. Res., 10, pp.453~ (2007)[DOI]
- A. J. Sedriks, "Corrosion of stainless steel, 2nd ed.", pp.45~ (1996), John Wiley & Sons
- P. I. Williams, , J. Mater. Sci., 22, pp.3537~ (1987)[DOI]
- R. L. Cowan, , Advances in Corrosion Science and Technology, 3, pp.293~ (1973)
- "ASTM A262-15, Standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels", ~
- "ASTM A763-15, Standard practices for detecting susceptibility to intergranular attack in ferritic stainless steels", ~
- "ASTM G28-02, Standard test methods for detecting susceptibility to intergranular corrosion in wrought, nickel-rich, chromium-bearing alloys", ~
- "ASTM G108-94, Standard test method for electrochemical reactivation (EPR) for detecting sensitization of AISI Type 304 and 304L stainless steels", ~
- "JIS G 0580, Electrochemical reactivation test method of stainless steel", ~ (2003)