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Combinational rate effects on the performance of nano-grained pseudoelastic Nitinols

journal contribution
posted on 2013-01-01, 00:00 authored by Abbas Amini, C Cheng, Alireza Asgari
Combinational loading-unloading rate effects were studied on the behavior of NiTi shape memory alloys (SMAs) under nanoindentation loads. While combinational loading rates showed negligible effects on the performance of NiTi SMAs, the combinational unloading rates did show significant effects on hysteresis energy. The heating-cooling phenomenon during the loading stage and the sole cooling during the unloading stage explain the effects. This study elucidates the nature of thermomechanical SMAs' behaviors during complex compressive loadings with the presence of solid-state phase transition.

History

Journal

Materials letters

Volume

105

Pagination

98 - 101

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0167-577X

eISSN

1873-4979

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

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