期刊
CORROSION SCIENCE
卷 77, 期 -, 页码 360-368出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.08.028
关键词
Stainless steel; SEM; Modeling studies; Stress corrosion; Pitting corrosion; Anodic dissolution
资金
- National Nature Science Foundation of China [50731003, 51171024]
- National Science Foundation
Pitting and crack nucleation at the early stages of stress corrosion cracking (SCC) under ultra-low elastic load were studied. Pits initiated on the sample surface and grew faster in the thickness direction rather than other directions. This corresponds with the stress and strain concentrations calculated using the finite element analysis. At the ultra-low elastic stress levels it is essential for the stress corrosion cracks to emanate from the pits/defects on the sample surface. Furthermore, the preferential SCC initiation sites are at the shoulders, rather than at the bottoms of the surface pits/defects. (C) 2013 Elsevier Ltd. All rights reserved.
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