Effect of Primary Microstructures during Training Producers on TWSME in NiTi Alloys

被引：3
|
作者：
Balak, Z. [1 ]
Abbasi, S. M. [2 ]
机构：
[1] Islamic Azad Univ, Dept Mat & Met Engn, Ahvaz, Iran
[2] MAU, Met Mat Res Ctr, Tehran, Iran
来源：
INTERNATIONAL JOURNAL OF ENGINEERING | 2012年 / 25卷 / 04期
关键词：
Shape Memory Alloy; Training; Primary Structure; TiNi;
D O I：
10.5829/idosi.ije.2012.25.04b.10
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of the martensitic, martensitic+austenitic and austenitic structures during bending training on two-way shape memory effect (TWSME) in Ni-50.8 at % Ti and Ni-49.9 at % Ti alloys has been studied. In addition, the effect of pre-strain, plastic strain, training cycle and training temperature on the TWSME has been investigated. Specimens were trained in martensitic, martensitic+austenitic and austenitic states with bending deformation. The results showed that in martensitic state, TWSME was more than the other states. Although the number of training cycles in martensitic state(10-15 cycle) were less than the other training methods (15-25 cycle), the obtained optimum pre-strain in martensitic state (16%) was more than other training methods (12%). In addition, it was shown that with increasing the training temperature in austenitic state, TWSME decrease.
引用
收藏
页码：337 / 341
页数：5
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