Abstract
The stress corrosion cracking (SCC) of core internals and/or recirculation pipes of SUS316L stainless steel are, in many cases, developed at inner surface due to the tensile residual stress by the circumferential welding and at the hardening layer by the cutting work. In present work, the residual stress and hardness distributions by cutting work were calculated by the FEM method by taking strain hardening into account which was measured experimentally. We discussed the effect of residual stress introduced by both of circumferential welding and cutting work on SCC progress.
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