Effects of Cold Working and Heat Treatment on Transformation Temperature of Ti-41.7Ni-8.5Cu (at%) Shape Memory Alloy and Its Probabilistic Prediction
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概要
- 論文の詳細を見る
The transformation temperatures of shape memory alloy vary with the composition and processing and manufacturing conditions of the alloy. The purpose of the present study is to clarify the effects of cold working and heat treatment on various transformation temperatures, and to estimate probabilistically the transformation temperatures by means of a model. The shape memory alloy used was Ti-41.7Ni-8.5Cu (at%), and the transformation temperatures were measured by the differential scanning calorimeter method (DSC method). The effects of processing and heat treatment on the transformation temperatures were investigated by changing the cold working ratio (10-40 %) and the heat treatment temperature (623-773 K), respectively. As a result, the transformation temperatures were found to decrease with increasing cold working ratio. The transformation temperatures were also found to increase with increasing heat treatment temperature. Therefore, the transformation temperatures were modeled by considering quantitatively the effects of the cold working ratio and the heat treatment temperature. A probabilistic prediction formula was proposed so that the reliability of the prediction may be estimated quantitatively.
- 社団法人日本材料学会の論文
- 2003-06-15
著者
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Sakuma T
School Of Engineering University Of Tokyo
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Sakuma T
Department Of Advanced Materials Science Graduate School Of Frontier Sciences University Of Tokyo
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Okabe Nagatoshi
Graduate school of Science and Engineering, Ehime University
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Tanaka S
Interface Science Research Group Special Division For Green Life Technology National Institute Of Ad
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SAKUMA Toshio
Central Research Institute of Electric Power Industry
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HOSOGI Maho
Kagawa University
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OKABE Nagatoshi
Toshiba Corporation
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Okabe N
Ehime Univ. Ehime
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Okabe Nagatoshi
Ehime University
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Okabe Nagatoshi
Graduate School Of Science And Engineering Ehime University
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MIYAZAKI Shuichi
University of Tsukuba
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