Chloride stress corrosion cracking (SCC) is a type of corrosion that can occur in austenitic stainless steels. It is a type of intergranular attack that happens when austenitic stainless steels are under tensile stress in the presence of chloride ions, oxygen and high temperatures, although SCC is sometimes seen at temperatures as low as 30ºC. Welding can induce residual stresses in stainless steels which sometimes lead to SCC in the right environment. For a good general reference for corrosion including SCC, try the book Corrosion Engineering by Fontana published by McGraw-Hill. Several on-line sources are also available. Just do an on-line search with one of the search engines (e.g. Google) and type "chloride stress corrosion cracking."