Cu-Al-Ni形状记忆合金马氏体逆相变的相场模拟研究
Phase Field Simulation of Reverse Martensite Transformation in Cu-Al-Ni Shape Memory Alloy
王丽红 1满蛟 1周建平1
作者信息
- 1. 新疆大学机械工程学院,乌鲁木齐 830000
- 折叠
摘要
通过建立两个马氏体变体的三维相场模型,对Cu-Al-Ni形状记忆合金外加载荷下的马氏体逆相变进行了模拟和预测,验证了外加载荷对弹性应变能的作用,探究了外加载荷对马氏体逆相变的影响.结果显示,在Cu-Al-Ni形状记忆合金中,拉伸和压缩载荷均会阻碍马氏体逆相变的进程,原因是拉伸和压缩载荷会释放储存在马氏体相变中的弹性应变能.通过相场模拟计算,发现压缩载荷对弹性应变能的释放作用优于拉伸载荷.
Abstract
A three-dimensional phase field model with different martensite variants was established to simulate and pre-dict the reverse martensite transformation in Cu-Al-Ni shape memory alloy under extra load.Effects of extra load on elastic strain energy were verified,and effects of extra load on reverse martensite transformation were explored.The results indicate that the tensile and compression loads can hinder the process of reverse martensite transformation in Cu-Al-Ni shape memory alloy,which is attributed to the release of elastic strain energy stored in the martensite transforma-tion by tensile and compression load.In addition,phase field simulation and calculation demonstrates that the release effect of compression load on elastic strain is superior to that of the tensile load.
关键词
相场模拟/马氏体逆相变/Cu-Al-Ni合金/弹性应变能Key words
Phase Field Simulation/Reverse Martensite Transformation/Cu-Al-Ni Alloy/Elastic Strain Energy引用本文复制引用
基金项目
新疆维吾尔自治区高层次人才天池计划资助项目(100400028)
新疆大学博士启动基金资助项目(620320011)
出版年
2024
NETL
NSTL
万方数据