Effect of Oxide Film Thickness on Stress-Strain Field at the Tip of Stress Corrosion Cracking

Abstract:

Environmentally assisted cracking (EAC) or stress corrosion cracking (SCC) of key structural materials in the environments of the light water reactor is one of the main problems for the management of the structural safety and service life of nuclear power plants. To understand the effect of oxide film thickness on SCC growth in structural materials in a high temperature water environment, the stress-strain field at the tip of a SCC in nickel base alloy constituted by base metal and oxide film was analyzed in this paper by finite element method using commercial software. The effects of oxide film thickness on the stress-strain field at the tip of the SCC was obtained, which provides a new insight into the research of the mechanism of SCC growth in structural materials in a high temperature water environment.

• Periodical: Key Engineering Materials (Volumes 474-476)
• Pages: 1128-1131
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.474-476.1128
• Online since: April 2011
• Authors: Wei Tang, He Xue, Dan Zhao
• Keywords: Nickel Base Alloy, Oxide Film, Strain, Stress, Stress Corrosion Cracking (SCC), Yield Strength

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