期刊
SCRIPTA MATERIALIA
卷 103, 期 -, 页码 37-40出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2015.02.032
关键词
Ti-based shape memory alloys; omega phase; Superelasticity; Shape memory effect; Martensitic transformation
类别
资金
- JSPS KAKENHI [26249104]
- MEXT KAKENHI [25102704]
- JASSO Follow-up Research Fellowship
- Grants-in-Aid for Scientific Research [26249104, 25420688] Funding Source: KAKEN
While the stress for inducing the martensitic transformation in a Ti-27Nb alloy changed only slightly on aging, the stress at which the martensite phase starts to plastically deform and the ultimate tensile strength increased on aging due to the formation of thermal omega phase or alpha phase. An anomalous temperature dependence of the shape memory behavior was also observed and explained by the fact that the thermal omega phase encouraged the formation of the athermal omega phase during cooling. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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