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Proceedings Paper

Mechanical deformation and tensile super-elastic behaviors of a Ti-Mo based shape memory alloy
Author(s): Jie Song; Xiaoning Zhang; Zhiguo Fan; Chaoying Xie; M. H. Wu
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Paper Abstract

Ni-free shape memory alloys are promising functional materials for medical applications. A newly developed Ti-Mo based shape memory alloy shows superelasticity after thermomechanical treatment. However, the microstructure evolution and precipitation during thermomechanical processes are still not well understood. In the present paper, compressive deformation behavior at a series of temperatures of 298K - 973K and tensile deformation behavior of the alloy after aged at 573K - 973K have been investigated systematically. It is found that the compressive yield stress and ultimate compressive strength change with the deformation temperature. The ultimate tensile strength and yield stress of aged specimens also change with the aging temperature following a non-linear relationship. Microstructures of aged specimens as well as effects of lattice softening and aging-induced precipitates on the deformation behavior have been investigated and discussed.

Paper Details

Date Published: 27 April 2011
PDF: 10 pages
Proc. SPIE 7977, Active and Passive Smart Structures and Integrated Systems 2011, 79772K (27 April 2011); doi: 10.1117/12.881851
Show Author Affiliations
Jie Song, Shanghai Jiao Tong Univ. (China)
Xiaoning Zhang, Shanghai Jiao Tong Univ. (China)
Zhiguo Fan, Shanghai Jiao Tong Univ. (China)
Chaoying Xie, Shanghai Jiao Tong Univ. (China)
M. H. Wu, Edwards Life Sciences LLC (United States)

Published in SPIE Proceedings Vol. 7977:
Active and Passive Smart Structures and Integrated Systems 2011
Mehrdad N. Ghasemi-Nejhad, Editor(s)

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