The sulfide stress corrosion cracking (SSCC) of three duplex stainless steels has been investigated by means of a new interrupted slow strain rate (ISSR) technique suitable to assess stress corrosion susceptibility. According to this technique a notched specimen is submitted to loading with a traditional SSR machine, but the clevis displacement is stopped after reaching of the maximum load. The material is considered susceptible to stress corrosion in the test environment only if after interruption of the clevis displacement, the crack propagates till specimen's fracture.

Subject
Test methods, Marine environments, Materials, Corrosion rate, Notches, Crack propagation, Elongation, Steel, Duplex stainless steel, Sulfide stress cracking, Fracture, Stress corrosion cracking, Slow strain rate technique
Keywords:
sulfide stress corrosion cracking, slow strain rate, duplex stainless steels
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1990
Association for Materials Protection and Performance (AMPP)
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