Effect of electron irradiation on the transformation characteristics of narrow hysteresis TiNiCu shape memory alloys

被引：26
|
作者：
Zu, XT [1 ]
Wang, LM
Huo, Y
Lin, LB
Wang, ZG
Lu, TC
Liu, LJ
Feng, XD
机构：
[1] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA
[2] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
[3] Sichuan Univ, Educ Minist China, Key Lab Radiat Phys & Technol, Dept Phys, Chengdu 610064, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 01期
关键词：
D O I：
10.1063/1.1427747
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
TiNiCu shape memory alloy samples were irradiated by 1.7 MeV electrons below the martensite finish temperature M-f. The transformation temperatures and the latent heat of phase transformation were measured by differential scanning calorimeter. The damage accumulation was determined by positron annihilation technology. The results indicated that the austenite transformation temperatures were raised, and the hysteresis was increased by the irradiation. The electron irradiation had a slight effect on M-f, and no detectable effect on the martensitic transformation start temperature M-s. The second lifetime of positrons were increased by the electron irradiation indicating the increase in the size and amount of vacancy clusters, which contributed to the observed change of the transformation characteristics. (C) 2002 American Institute of Physics.
引用
收藏
页码：31 / 33
页数：3
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