書誌事項
- タイトル別名
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- OS1532 Effect of the Defect Shape on the Fatigue Crack Non-Propagation behavior Using Quenched and Tempered 0.45% Carbon Steel
抄録
A small artificial hole is regarded as a pre-crack and square root area parameter is considered as one of the most important parameter for the fatigue limit of materials which contain small defects. In this study, introducing a sharp notch by using focused ion beam (FIB) or a small artificial hole which have the same area on the quenched and tempered 0.45% carbon steel specimen, we carried out these specimens fatigue tests and we investigated the difference of the two defect shape in the hard material. From the fatigue tests, we obtained two important results. First, the fatigue limit of the specimen with the small artificial hole was higher than the specimen with the FIBed notch. Second, fatigue crack initiation and propagation behavior was different between the two types of the specimens. Usually, there are no differences for annealed steel in the two defect shapes. Therefore, the hardness may affect the fatigue crack behavior of the two defect shapes.
収録刊行物
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- M&M材料力学カンファレンス
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M&M材料力学カンファレンス 2013 (0), _OS1532-1_-_OS1532-3_, 2013
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001205873729152
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- NII論文ID
- 110009936780
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- ISSN
- 24242845
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可