视频显微镜应用于形状记忆合金材料力学特性研究  

Research on Mechanical Properties of Shape Memory Alloy Materials Using Video Microscope

作　　者：朱启荣[1] 倪凡[1] 杨国标[1] 罗烈[1] 

机构地区：[1]同济大学航空航天与力学学院同济大学国家力学实验教学示范中心,上海200092

出　　处：《现代科学仪器》2010年第1期94-96,共3页Modern Scientific Instruments

基　　金：国家自然科学基金项目资助(No.10972160);上海市重点学科建设项目资助(B302)

摘　　要：本文探讨了微尺度、新型智能形状记忆合金材料力学性能的检测设备和技术方法。首先制作两组小尺寸形状记忆合金试件,再根据试件大小及其受力范围设计出合适的微型加载装置,然后借助视频显微镜观察并计算试件试验时的应变值,配合相对应的载荷值,得到两组试件各自的应力应变曲线,最后比较拟合两组曲线,得到试件材料的应力应变曲线,进而探讨了该类形状记忆合金材料的基本力学特性。The technology,equipment and method used to measure the mechanical properties of micro-scale new-style intelligent shape memory alloy material are studied in the paper.First two groups of small-scale shape memory alloy sam-ples were made.The suitable micro load device was made according to sample size and force range.Then the strain of the samples were observed and calculated by using the video microscopy.Comparing with the corresponding force,the stress-strain curves of the two groups of samples were each obtained.Finally fi tting these two curves,the stress-strain curve of the sample material was obtained.The basic mechanical properties of this shape memory alloy materials were discussed in the end.

关 键 词：形状记忆合金 视频显微镜 微尺度 

分 类 号：TG139.6[一般工业技术—材料科学与工程]