SEDL / STP / STP665-EB / STP38122S

Stress Corrosion Cracking Susceptibility Index, I^SCC, of Austenitic Stainless Steels in Constant Strain-Rate Test

Abe, S
Senior research metallurgist, assistant research chemist, and head, Corrosion and Heat Resistant Steels Laboratory, Fundamental Research Laboratories, Nippon Steel Corporation, Kawasaki,

Kojima, M
Senior research metallurgist, assistant research chemist, and head, Corrosion and Heat Resistant Steels Laboratory, Fundamental Research Laboratories, Nippon Steel Corporation, Kawasaki,

Hosoi, Y
Senior research metallurgist, assistant research chemist, and head, Corrosion and Heat Resistant Steels Laboratory, Fundamental Research Laboratories, Nippon Steel Corporation, Kawasaki,

Pages: 11    Published: Jan 1979

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Abstract

A new stress corrosion cracking (SCC) susceptibility index, I^SCC, is proposed in constant strain rate SCC test both for transgranular (TG)SCC and for inter-granular (IG)SCC. I^SCC is best defined by the equation Isec=Asec/Amech are the area of SCC fractured surface and that of mechanically fractured surface, respectively. It is found that there is a good correlation between I^SCC in constant strain-rate test and the time to fracture in constant load test.