Enhancement of Fatigue Life in TiNi Shape Memory Alloy by Ultrasonic Shot Peening
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- Takeda Kohei
- Department of Mechanical Engineering, Aichi Institute of Technology
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- Matsui Ryosuke
- Department of Mechanical Engineering, Aichi Institute of Technology
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- Tobushi Hisaaki
- Department of Mechanical Engineering, Aichi Institute of Technology
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- Homma Shinichi
- Nippon Trex Co., Ltd.
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- Hattori Kanehisa
- Toyo Seiko Co., Ltd.
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Abstract
The fatigue property of shape memory alloy (SMA) is one of the most important subjects in view of evaluating functional characteristics of SMA elements. In the present study, ultrasonic shot peening (USP) was applied to induce compressive residual stress on the surface layer of TiNi SMA tape and the influence of USP on the bending fatigue life was investigated. The fatigue life of USP-treated tape is longer than that of the as-received tape. The fatigue life of the tape USP-treated with high coverage is longer than that with low coverage. The fatigue life of the USP-treated tape increases in proportion to the hardness on the surface of the tape.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 56 (4), 513-518, 2015
The Japan Institute of Metals and Materials
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Keywords
Details 詳細情報について
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- CRID
- 1390282679230710144
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- NII Article ID
- 40020413780
- 130005129263
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 026286722
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed