Stability of Ti-Ta Base High Temperature Shape Memory Alloys

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Abstract:

The stability of shape memory properties was investigated by thermal cycling tests in Ti-23Ta-(2-4)Sn alloys. The martensitic transformation temperature decreased considerably after aging at 573 K for the Ti-23Ta-2Sn alloy. The decrease in the martensitic transformation temperature by the aging effect was suppressed by the addition of 3at.%Sn and more to the Ti-23Ta alloy. The Ti-23Ta-3Sn alloy exhibited better cyclic stability compared with a Ti-32Ta alloy which has a similar transformation temperature.

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Materials Science Forum (Volumes 706-709)

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1921-1924

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January 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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