A MECHANISM FOR TRANSGRANULAR STRESS-CORROSION CRACKING

Analysis of load and current transients accompanying discontinuous tra nsgranular stress corrosion cracking (T-SSC) are analyzed in light of fractographic evidence, resulting in a model for T-SCC which involves corrosion-enhanced cleavage. The model accounts for the crystallograph y and microstructural features of the resulting fracture, the orientat ion dependence of the fracture process, and the role of the electroche mical/alloy environment.