Influence of Ti2Cu precipitates on B19 martensite structure in a Ti-rich Ti-Ni-Cu thin film

被引：15
作者：
Meng, X. L. [1 ,2 ]
Sato, M. [1 ]
Ishida, A. [1 ]
机构：
[1] Natl Inst Mat Sci, Sensor Mat Ctr, Tsukuba, Ibaraki, Japan
[2] Harbin Inst Technol, Dept Mat Phys & Chem, Harbin 150006, Peoples R China
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 2008年 / 88卷 / 08期
关键词：
shape memory alloys; Ti-Ni-Cu thin film; Ti(2)Cu precipitate; martensite; microstructure;
D O I：
10.1080/09500830802322152
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The B19 martensite structure of Ti(51.5)Ni(33.1)Cu(15.4) thin films containing the Ti(2)Cu precipitates annealed at 873 K for 1 h has been investigated by transmission electron microscopy. It was found that the Ti(2)Cu precipitates do not stop the shear deformation of martensitic transformation. The Ti(2)Cu precipitates were elastically bent when martensite plates cut through them. However, the Ti(2)Cu precipitates sometimes change the martensite plates in direction or width, suggesting that the Ti(2)Cu precipitates provide a resistance to the growth of martensite plates to some degree.
引用
收藏
页码：575 / 582
页数：8
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