Abstract
Abstract The quantitative influences of alloy composition, thermal history, stress and environment are discussed in this review of a multinational program to develop cures for the stress corrosion cracking of stainless steel in high pressure hot water. Experimental and theoretical examinations of the interactive influence of composition and the time-temperature history during welding have defined alloy-welding parameters for the fabrication of unsensitized welds. The roles of stress and stressing rate on stress corrosion crack growth have been determined and techniques to generate beneficial residual stress have been developed for use both during fabrication and in existing structures. The environment, while not as fully understood as other stress corrosion controlling parameters, has been shown to develop a unique chemistry in crevices and to influence the rate of crack growth and morphology. From the present quantitative understanding of stress corrosion the danger of cracking in stainless steel compone...
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