The variation of electrical resistance of near stoichiometric NiTi during thermo-mechanic procedures

被引：27

作者：

Wu, XD ^{[1
]}

Wu, JS ^{[1
]}

Wang, Z ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Open Lab High Temp Mat & High Temp Tests, Shanghai 200030, Peoples R China

来源：

SMART MATERIALS & STRUCTURES | 1999年 / 8卷 / 05期

关键词：

D O I：

10.1088/0964-1726/8/5/307

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The variation of electrical resistance of near stoichiometric NiTi during some thermo-mechanic procedures was studied in this paper. The results show that when the R-phase does not exist in the near stoichiometric NiTi wire, the electrical resistance of NiTi wire increases linearly with the increase of strain at constant temperature. When a phase transformation or martensite reorientation takes place, the slopes of the electrical against strain curves are changed. During the cycles of tensile loading and unloading, electrical resistance of NiTi wire increases as the increase of the cycle numbers, but will stabilize after approximately 15 cycles. Furthermore, the possibility to use NiTi wire as a sensor in the intelligent materials system is discussed.

引用

页码：574 / 578

页数：5