Analysis on Micro-Mechanical State at Tip of Stress Corrosion Cracking in Nickel base Alloy

DOI

10.2991/mebe-15.2015.176How to use a DOI?

Keywords

Nickel base alloy; stress corrosion cracking; oxide film; groove-type crack; FEM.

Abstract

It is one of the main failure forms that stress corrosion cracking (SCC) of nickel base alloys and stainless steels in the nuclear pressure vessels and piping. Current researches show that SCC is a process of oxide film rupture and reform. To understand the micro-mechanical state at the SCC crack tip, the stress distribution in oxide film and base metal is analyzed before and after the oxide film rupture, and the effect of groove-type crack length on the stress field at SCC crack tip is also discussed in this paper. The investigated results provide a new insight into the mechanism of SCC growth of the nuclear structural materials in a high water environment.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xue He
AU  - Yongqiang Li
AU  - Yinghao Cui
AU  - Zheng Chen
PY  - 2015/04
DA  - 2015/04
TI  - Analysis on Micro-Mechanical State at Tip of Stress Corrosion Cracking in Nickel base Alloy
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 790
EP  - 794
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.176
DO  - 10.2991/mebe-15.2015.176
ID  - He2015/04
ER  -