Incubation Time of Stress Corrosion Cracking for Type 316L and Type 316 Stainless Steels by CBB Method in High Temperature Water
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- Mayuzumi Masami
- Department of Mechanical Sciences and Engineering Tokyo Institute of Technology Materials Science Research Laboratory, Central Research Institute of Electric Power Industry
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- Ishiyama Nobuhisa
- Department of Mechanical Sciences and Engineering Tokyo Institute of Technology TOYOTA MOTOR CORPORATION
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- Mizutani Yoshihiro
- Department of Mechanical Sciences and Engineering Tokyo Institute of Technology
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- Tani Jun-ichi
- Materials Science Research Laboratory, Central Research Institute of Electric Power Industry
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- Kako Kenji
- Materials Science Research Laboratory, Central Research Institute of Electric Power Industry
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Incubation times of stress corrosion cracking (SCC) for mill annealed and cold rolled type 316L stainless steel (SS) and type 316 SS were examined by the creviced bent beam method in oxygenated high temperature water at 561 K. SCC was observed in type 316L SS after exposure of 1000 h to the test environment, although type 316 SS showed SCC susceptibility after exposure of 500 h. The fracture surface of both type 316L SS and type 316 SS consisted mainly of intergranular SCC with a small fraction of transgranular SCC similar to those observed in the actual components. The maximum SCC crack length [a] on the specimen surface increased in proportion to the logarithm of the exposure time [t] for each SS as ;<br>a=700×ln(t)–4334 : type 316L SS,<br>a=1078×ln(t)–6347 : type 316 SS.<br>The incubation times of 490 h and 360 h were obtained for type 316L SS and type 316 SS, respectively, from the relationship between the crack length and the test time. The SCC incubation times were larger than that of sensitized type 304 SS by >3 times showing higher resistance to SCC of mill annealed, low carbon stainless steels.
収録刊行物
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- Zairyo‐to‐Kankyo
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Zairyo‐to‐Kankyo 57 (5), 230-234, 2008
公益社団法人 腐食防食学会
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詳細情報 詳細情報について
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- CRID
- 1390282681234334592
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- NII論文ID
- 10021170783
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- NII書誌ID
- AN10235427
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- ISSN
- 18819664
- 09170480
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- NDL書誌ID
- 9512557
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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