書誌事項
- タイトル別名
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- Effect of hydrogen on low cycle fatigue of low carbon steel
- テイタンソ コウ ノ テイサイクル ヒロウ エ ノ スイソ テンカ ノ エイキョウ
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The effect of hydrogen on low cycle fatigue life and properties has been examined on S10C, which has limited amount of pearlite. Then the results have been analyzed with regard to the conditions and distributions of hydrogen. Discussion has been further made on the essentials of the degradation by hydrogen absorption. Degradation by hydrogen is not usually perceived in low carbon ferritic steels;A large part of hydrogen is discharged during the arrangement before fatigue test, because of little amount of pearlite that can retard the diffuse-out of hydrogen. Minimizing the hydrogen emission by devising the experimental method, degradation of fatigue life has been successfully detected. When the hydrogen in matrix gasifies at inner part of the specimen along the interface between matrix and inclusion, the high-pressure hydrogen gas atmosphere assists the initiation and propagation of fatigue crack. Hydrogen absorption also suppresses the Bauschinger effect and enlarges the stress amplitude. This is not the direct cause of hydrogen damage. Hydrogen may stabilize vacancy that is produced by cyclic deformation, and enables micro-voids formation and further coalescence of them. Hydrogen degrades the fatigue life through stabilization of vacancy.
収録刊行物
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- 圧力技術
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圧力技術 48 (1), 11-18, 2010
一般社団法人 日本高圧力技術協会
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詳細情報 詳細情報について
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- CRID
- 1390001204616736256
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- NII論文ID
- 10026799498
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- NII書誌ID
- AN00011762
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- ISSN
- 13479598
- 03870154
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- NDL書誌ID
- 10580855
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可