書誌事項
- タイトル別名
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- OS2136 Evaluation of fatigue crack propagation properties of cast Alloy718
抄録
Fatigue crack propagation of Ni-base superalloy718 casting was investigated at room temperature, using CT specimen of thickness of 6mm. A fracture observatin and section observation were carried out about the specimen. In addition, crystallographic orientation analysis by the EBSD measurement of polishing surface under the fracture was performed. As a result, at the domain of ΔK = 16-18MPa√m, crack propagation was diagonal and a fracture depended on the metal organization, at the domain of ΔK = 18-21 MPa√m, crack propagation was straight and the fracture surface was like ductility, and at the domain ΔK =21-30 MPa√m was the same as a low ΔK. At the domains of ΔK =16-18 and 21-30, fatigue crack propagation rate were slow. In the domain of ΔK=18-20, it was fast fatigue crack propagation rate and crystallographic orientation was near to (100).
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 2012 (0), _OS2136-1_-_OS2136-3_, 2012
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
- 1390282680847538816
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- NII論文ID
- 110009937569
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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