STRAINING METAL-ELECTRODE TECHNIQUE AS A SCC TEST - TYPE-304 STAINLESS-STEEL IN NACL+H2SO4 SOLUTIONS

The straining metal electrode technique was applied to the study of stress corrosion cracking (SCC) susceptibility of Type 304 austenitic stainless steel in H//2SO//4 solutions and in H//2SO//4 plus NaCl solutions, at room temperature. A film formation process was detected in the active zone of Type 304 in H//2SO//4 plus NaCl solutions. It is concluded that a film rupture mechanism operates during SCC of this metal in H//2SO//4 plus NaCl solutions.