A Theory for the Propagation of Stress Corrosion Cracks in Metals
- 1 January 1972
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 119 (4) , 405-407
- https://doi.org/10.1149/1.2404217
Abstract
A quantitative theory for the rate of propagation of stress corrosion cracks in metals is presented and discussed. The theory is based on the film rupture mechanism and is valid when phenomena at the crack tip control the propagation rate. The important parameters in the theory are the strain required to rupture the passive film, the amount of corrosion before repassivation, and the creep rate of material at the crack tip. Plausibility of the theory is demonstrated for stainless steel and for a magnesium alloy.Keywords
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