On the damping behaviour of NiTi shape memory alloy

被引：52

作者：

Liu, Y ^{[1
]}

van Humbeeck, J ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept MTM, B-3001 Heverlee, Belgium

来源：

JOURNAL DE PHYSIQUE IV | 1997年 / 7卷 / C5期

关键词：

D O I：

10.1051/jp4:1997582

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Shape memory alloys exhibit a high damping capacity in the martensite state. Results obtained from both DMA and cyclic tests under tension-compression load show that the martensite damping capacity in NiTi SMAs is a function of both strain amplitude and annealing temperature. Internal friction due to movements of martensite twin boundaries within both elastic (accommodation) and inelastic (reorientation) ranges as a function of strain amplitude seems to be consistent. A critical annealing temperature exists for deformed NiTi SMAs in order to obtain a high martensite damping capacity. Under tension-compression cyclic loading, the martensite damping decreases as the number of cycles increases, and it tends to stabilize with further cycling.

引用

页码：519 / 524

页数：6