Journal
CORROSION SCIENCE
Volume 118, Issue -, Pages 143-157Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2017.02.003
Keywords
Stainless steel; SEM; Stress corrosion cracking; High temperature corrosion
Funding
- Electric Power Research Institute
- Kansai Electric Power Co., Inc.
- Tohoku Electric Power Co., Inc.
- Mitsubishi Heavy Industries, Ltd.
- EDFSEPTEN
- Chubu Electric Power Co., Inc.
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The effects of dissolved hydrogen (DH) and inner surface finish condition of the hollowed specimen on stress corrosion crack (SCC) initiation and small crack growth behaviors of 316 stainless steel were investigated in high temperature water with various DH levels. The drilled specimen showed higher surface hardness and more enhanced SCC initiation and short crack growth behavior than honed specimen but both showed a similar trend in the water chemistry with different DH levels. Fractographic examinations showed mixed modes of transgranular and intergranular cracking. The influences of DH and surface condition on SCC behaviors are discussed. (C) 2017 Elsevier Ltd. All rights reserved.
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