Evaluation of Corrosion Fatigue Characteristics of Artificially Sensitized Austenitic Stainless Steel Using the DCPD Method

Abstract:

Austenitic stainless steel has a large problem to decrease its corrosion resistance and mechanical properties by sensitization in the welding process. Thus, in this paper, corrosion fatigue characteristics of artificially sensitized STS304 were investigated. According as heat treatment period for sensitization increases, the Cr-carbide deposition in the grain boundary and degree of sensitization (Ia/Ir) increased. From the results, corrosion fatigue strength of sensitized STS304 was remarkably reduced compare to non-sensitized ones.

• Periodical: Key Engineering Materials (Volumes 321-323)
• Pages: 607-610
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.321-323.607
• Online since: October 2006
• Authors: Dong Ho Bae, Byung Bok Choi, Gyu Young Lee
• Keywords: Corrosion, Corrosion Fatigue, Corrosion Fatigue Characteristic, Corrosion Fatigue Strength, Corrosion Rate, Degradation, Electrochemical Reaction

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DOI: 10.1520/g0108