Influence of thermal treatments on the long range order and the two way shape memory effect induced by stabilization in Cu-Al-Be single crystals
Influence of thermal treatments on the long range order and the two way shape memory effect induced by stabilization in Cu-Al-Be single crystals
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DOI：
10.1016/s0921-5093(99)00078-7
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发表时间：
1999-08-15
期刊：
影响因子：
6.4
通讯作者：
Ahlers, M
中科院分区：
文献类型：
--
作者：
Cingolani, E;Stalmans, R;Ahlers, M
分析了热处理对Cu-Al-Be单晶马氏体相变行为的影响。在足够高的过量空位浓度存在下的马氏体中的老化导致稳定化和马氏体转变温度Ms的40 ℃的增加，类似于Cu-Zn-Al。稳定化处理足以获得完全的双向形状记忆效应（TWME）。当多余的空位退火后，稳定化和TWME就不存在了。并与Cu-Zn-Al和Cu-Al-Ni单晶作了比较。(C)1999年由Elsevier Science S.A.出版All rights reserved.
The influence of thermal treatments on the behavior of Cu-Al-Be single crystals, which transform martensitically, were analyzed. Aging in the martensite in the presence of a sufficiently high excess of vacancy concentration leads to stabilization and an increase of 40 degrees C in the martensitic transformation temperature Ms, similar to Cu-Zn-Al. The stabilizing treatment is sufficient to obtain a full two way shape memory effect (TWME). Stabilization and TWME are absent when the excess vacancies have annealed out. The results are compared with those for Cu-Zn-Al and Cu-Al-Ni single crystals. (C) 1999 Published by Elsevier Science S.A. All rights reserved.