Influence of 18 MeV proton irradiation on the R-phase transformationof a TiNi shape memory alloy

wang zhi-guo; zu xiao-tao; feng xiang-dong; liu li-juan; lin li-bin

Volume 15 Issue 01

Jan. 2003

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Article Navigation > High Power Laser and Particle Beams > 2003 > 15(01): 0-

xie yan-zhao, sun bei-yun, zhou hui-, et al. High-altitude electromagnetic pulse environment over the lossy ground[J]. High Power Laser and Particle Beams, 2003, 15.

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wang zhi-guo, zu xiao-tao, feng xiang-dong, et al. Influence of 18 MeV proton irradiation on the R-phase transformationof a TiNi shape memory alloy[J]. High Power Laser and Particle Beams, 2003, 15.

xie yan-zhao, sun bei-yun, zhou hui-, et al. High-altitude electromagnetic pulse environment over the lossy ground[J]. High Power Laser and Particle Beams, 2003, 15.

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Influence of 18 MeV proton irradiation on the R-phase transformationof a TiNi shape memory alloy

1.
Department of Physics/Key Laboratory for Radiation Physics and Technology of Ministry of Education,Sichuan University,Chengdu 610064,China

Publish Date: 2003-01-15

Abstract

Abstract

Ti-50.6at.%Ni shape memory alloy specimens were irradiated under the austenite state (parent phase) using a tandem accelerator by 18MeV protons with doses of 1.53×1013and 1.53×1014H+/cm2. The microstructure and phase transformation of the specimens before and after irradiation were examined by transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). After the irradiation the parent phase (austenite) was stabilized. R-phase transformation start temperature and the reverse martensitic transformation finish temperature decreased with the increasing proton fluence. They decreased about 13K and 6K at a dose of 1.53×1014H+/cm2, respectively. The reverse martensitic transformation start temperature and Rphase transformation finish temperature were not affected by t
- tini shape memory alloy,
- r-phase transformation,
- proton irradiation,
- dsc,
- tem

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