理化检验：物理分册2011，Vol.47Issue(8)：487-489,498,4.
NiTi形状记忆合金相变过程中的超声波声速特性
Behavior of Ultrasound Velocity of NiTi Shape Memory Alloy during Phase Transformation Process
摘要
Abstract
The ultrasound velocity of longitudinal wave of NiTi shape memory alloy（SMA） had been determined by pulse-echo method and the ultrasound velocity was measured at different temperature.The results show that the ultrasound velocity varied slowly with temperature if no phase transformation was induced,but sudden change in the ultrasound velocity could be observed when phase transformation occured.The phase transformation temperature determined by the ultrasound velocity method had a good consistence with that of the traditional electric resistance method.It could be concluded that the ultrasound velocity method with the advantage of operating conveniently,no damage to parts and so on could be used to examine phase transformation of SMA.关键词
超声波声速/NiTi形状记忆合金/相变/相变温度Key words
ultrasound velocity/NiTi shape memory alloy/phase transformation/phase transformation temperature分类
矿业与冶金引用本文复制引用
王开圣,赵志敏,汪东华..NiTi形状记忆合金相变过程中的超声波声速特性[J].理化检验：物理分册,2011,47(8):487-489,498,4.基金项目
教育部博士点专项基金资助项目 （）
国际合作基金资助项目 （）
