MICROSTRUCTURAL CHANGE AND MECHANICAL PROPERTY OF NEUTRON-IRRADIATED TI-NI SHAPE-MEMORY ALLOY

Authors
MATSUKAWA Y SUDA T OHNUKI S
Citation
Y. Matsukawa et al., MICROSTRUCTURAL CHANGE AND MECHANICAL PROPERTY OF NEUTRON-IRRADIATED TI-NI SHAPE-MEMORY ALLOY, Science Reports of the Research Institutes, Tohoku University, Series A: Physics, Chemistry, and Metallurgy, 45(1), 1997, pp. 37-40
Citations number
11
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Science Reports of the Research Institutes, Tohoku University, Series A: Physics, Chemistry, and Metallurgy → ACNP
ISSN journal
00408808
Volume
45
Issue
1
Year of publication
1997
Pages
37 - 40
Database
ISI
SICI code
0040-8808(1997)45:1<37:MCAMPO>2.0.ZU;2-D
Abstract
Microstructural change and mechanical property of Ti-Ni shape memory a lloy after neutron irradiation have been studied. The neutron doses we re from 1.4 x 10(16) to 1.2 x 10(19) n/cm(2), and the irradiation temp erature was under 423K. A halo ring was observed after the irradiation of 1.2 x 10(19) n/cm(2), which means that amorphous phase was induced by the neutron irradiation. In stress-strain curve, the critical poin t (sigma M) increased as the dose increased. At the highest dose, the stress-strain curve lost pseudoelasticity. These results indicate that such mechanical properties strongly depend on the amorphous formation .