Effect of Pre-strain on Two-way Shape Strain in TiNi and TiNiCu Alloy

JIN Wei; WANG Jian; YAN Ying

Volume 26 Issue 4

Aug. 2005

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JIN Wei, WANG Jian, YAN Ying. Effect of Pre-strain on Two-way Shape Strain in TiNi and TiNiCu Alloy[J]. Nuclear Power Engineering, 2005, 26(4): 410-413,418.

Citation:

JIN Wei, WANG Jian, YAN Ying. Effect of Pre-strain on Two-way Shape Strain in TiNi and TiNiCu Alloy[J]. Nuclear Power Engineering, 2005, 26(4): 410-413,418.

JIN Wei, WANG Jian, YAN Ying. Effect of Pre-strain on Two-way Shape Strain in TiNi and TiNiCu Alloy[J]. Nuclear Power Engineering, 2005, 26(4): 410-413,418.

Citation:

JIN Wei, WANG Jian, YAN Ying. Effect of Pre-strain on Two-way Shape Strain in TiNi and TiNiCu Alloy[J]. Nuclear Power Engineering, 2005, 26(4): 410-413,418.

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Effect of Pre-strain on Two-way Shape Strain in TiNi and TiNiCu Alloy

1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China;
2. Northeastern University, Shenyang, 110004, China

Received Date: 2005-01-25
Rev Recd Date: 2005-04-05

Available Online: 2025-07-29

Publish Date: 2005-08-15

Abstract

Abstract

Effect of pre-strain on two-way shape memory strain of Ti49.2Ni50.8 and Ti50Ni43Cu7 alloy were investigated by tensile test and electrical resistance measurement. The results indicated that there ex- isted optimal pre-strain temperature and pre-strain value, at which the specimen exhibited maximum two-way shape memory strain. For Ti49.2Ni50.8 tensile specimens, the maximum two-way shape memory strain was 3.6% （pre-strain 14% at -60℃）, for Ti50Ni43Cu7 tensile specimens the maximum two-way shape memory strainwas 3.0% （pre-strain 12% at 20℃）。For Ti49.2Ni50.8 ring shape specimens, the maximum two-way shape memory strain was 4.1% （pre-strain 13.7% at -60℃）.
- Transformation temperature,
- Pre-strain temperature,
- Pre-strain,
- Two-way shape memory strain