Abstract

Abstract The susceptibility to stress corrosion cracking (SCC) of a sensitized, wrought type 304 (UNS S30400) stainless steel (SS) was assessed using the slow strain rate test (SSRT) technique under applied potential control. Data was obtained in lithium hydroxide (LiOH)-doped water with the addition of sulfate (SO4−) and/or chloride (Cl−) ions. Tests were performed over the temperature range from 50°C to 250°C. Intergranular SCC (IGSCC) was observed at temperatures from 150°C to 250°C. The effects of SO42− and Cl− on the critical potential for IGSCC varied with temperature. Results were compared with literature data for IGSCC in pure water and in water containing other concentrations of dopants.

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