Prediction of Environmental and Strain-Rate Effects on the Stress Corrosion Cracking of Austenitic Stainless Steels

[+] Author and Article Information
P. S. Maiya

Materials Science and Technology Division, Argonne National Laboratory, Argonne, Ill. 60439

J. Pressure Vessel Technol 109(1), 116-123 (Feb 01, 1987) (8 pages) doi:10.1115/1.3264843 History: Received January 08, 1986; Revised May 22, 1986; Online November 05, 2009


The stress corrosion cracking (SCC) susceptibility of austenitic stainless steels in high-temperature water is controlled by environmental variables (e.g., dissolved oxygen, corrosion potential, impurities), microstructure (e.g., degree of sensitization), and strain rate. A phenomenological model based on the slip-dissolution mechanism and elastic-plastic fracture mechanics is presented to quantitatively describe the effects of both environment-related parameters and strain rate on SCC in constant extension rate tests. The model predictions are in good agreement with the results of tests performed on Types 304, 316, and 316NG stainless steel at different strain rates in a wide variety of environments relevant to boiling-water reactors.

Copyright © 1987 by ASME
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