Stress Corrosion Cracking in Fe-Mn-Cr Alloys^* Available to Purchase

The stress corrosion resistance of austenitic chromium-maganese steels has been measured using fracture mechanics techniques. The resulting crack velocity-stress intensity curves resemble those observed with other material-environment combinations. High strength, nonmagnetic austenitic steels of the 18% Mn-5% Cr-0.5% C variety exhibit both intergranular and transgranular stress corrosion cracking (SCC) in distilled water at room temperature. Important mechanical and environmental effects on stress corrosion crack growth are measured and discussed.