Fatigue and Fracture Characteristics of Polycrystalline Cu–Al–Ni Shape Memory Alloys

• Sakamoto Hidekazu

  Institute of Scientific and Industrial Research, Osaka University

• Kijima Yoshio

  Graduate Student, Osaka University. Presently, Central Research Laboratory, Sumitomo Metal Mining Co. Ltd.

• Shimizu Ken’ichi

  Institute of Scientific and Industrial Research, Osaka University

書誌事項

タイトル別名

• Fatigue and Fracture Characteristics of Polycrystalline Cu–Al–Ni Shape Memory Alloys

抄録

The fatigue and fracture characteristics of polycrystalline Cu-Al-Ni shape memory alloys have been investigated by examining the effect of quenching condition on intergranular cracking, by tensile and fatigue testing and by observing fracture surfaces. The tensile and fatigue tests have been carried out for three deformation modes; elastic deformation of the matrix crystal, pseudoelastic deformation due to a stress-induced martensitic transformation in the matrix state, and deformation in the martensitic state. As a result, pseudoelastic deformation due to stress-induced martensitic transformation was found to have the most deleterious effect on the intergranular cracking. Based on the experimental results, a model for the intergranular cracking was proposed in view of the transformation strain associated with a stress-induced martensite. This model can elucidate the degree of resistance to intergranular cracking in various shape memory alloys.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 23 (10), 585-594, 1982

  社団法人 日本金属学会

キーワード

• General Engineering

詳細情報

• CRID: 1390282680094660608
• NII論文ID: 130003485948
• DOI: 10.2320/matertrans1960.23.585
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/23/10/23_10_585/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可