Martensitic transformations and kinetics in Ti-Ni-Cu-Hf shape memory alloy
Martensitic transformations and kinetics in Ti-Ni-Cu-Hf shape memory alloy
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Ti-Ni-Cu-Hf 形状记忆合金中的马氏体转变和动力学
DOI:
10.1016/j.matlet.2021.129732
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发表时间:
2021-03-27
影响因子:
3
通讯作者:
Cai, Wei
中科院分区:
文献类型:
--
作者:
Li, Jun;Sun, Kuishan;Cai, Wei
The purpose of the paper was to investigate the martensitic transformation and its kinetic of the Ti-Ni-Cu-Hf shape memory alloy. The Ti47Ni44Cu6Hf3 alloy would undergo a reversible B2 B19' martensitic transformation during thermal cycling process. The apparent activation energy was calculated based on seven different DSC cooling curves. A strong cooling rate dependence of martensitic transformation kinetics was observed and the corresponding mechanism was discussed. Moreover, the variation of transition activation energy for a specific martensite fraction was studied to further characterize the martensitic transformation kinetics. (C) 2021 Elsevier B.V. All rights reserved.