摘要
介绍了声发射 (AE)法研究形状记忆合金的原理和基本方法。大量研究结果表明 ,通过检测形状记忆合金的AE信号、分析AE信号的特征参数 ,可研究和评价温度和应力诱发马氏体相变 ,了解其马氏体相变过程及其特点 ,进而对作为AE源的形状记忆合金本身的性能和状态进行评价。作为一种动态无损检测技术 。
The principle and characterization methods of acoustic emission (AE) on the research of shape memory alloys(SMA) were introduced. The results of research reviewed here show that AE, by detecting and analysing its signals, can be used in studying and evaluating heat or stress induced martensitic transformation. As a dynamic non destructive test technology, AE plays an important role in the study of SMA intelligent materials and structures.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2001年第6期1002-1008,共7页
The Chinese Journal of Nonferrous Metals
关键词
声发射
形状记忆合金
马氏体相变
acoustic emission
shape memory alloy
martensitic transformation
