Damping characteristics of a Ti 40.5 Ni 49.5 Zr 10 shape memory alloy
Journal
Journal of Alloys and Compounds
Journal Volume
403
Journal Issue
1-2
Pages
154-160
Date Issued
2005
Author(s)
Hsieh S.F.
Abstract
Ti40.5Ni49.5Zr10 alloy undergoes B2 ↔ B19′ martensitic transformation. Damping capacities of B19′ and B2 phases of this alloy are lower than those of Ti51Ni49 alloy due to Zr atoms solid-soluted hardening. Transformation temperatures of this alloy decrease, but transformation peak heights Qmax-1 increase with increasing aging time at 300 °C due to the formation of finer (0 0 1) M twins for specimens aged longer. The Qmax-1 peaks of the slightly cold-rolled Ti40.5Ni49.5Zr10 alloy are higher than those of the as-annealed alloy, which may be because the thinner twins are induced by small deformation. © 2005 Elsevier B.V. All rights reserved.
Type
journal article