Correlations between applied stress (σ) and SCC initiation time (t) of sensitized 304 stainless steel, alloy 600 and alloy X-750 were studied. A general expression t=m-(σ-n was obtained from both the analysis of the uni-axial constant load test data and the theoretical considerations of the crack initiation process. The n-value was determined from the process of crack initiation, and the m value was a constant determined from material and environmental conditions.

Subject
Water, Materials, Stainless alloys, Hydrogen concentration, Metal surfaces, Crack initiation, Stress cracking, Stress, Metals, Fracture, Alloys, Stress corrosion cracking, Hydrogen
Keywords:
stress corrosion cracking, nickel base alloy, stainless steel, light water reactor, life prediction
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1994
Association for Materials Protection and Performance (AMPP)
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