冲击波扰动衰减法测量高压下铝的屈服强度  

Measuring Yield Strength of Aluminum at High Pressure by Shock-wave Disturbance Damping Method

作　　者：郝斌斌 马小娟[1] 刘福生[1] 

机构地区：[1]西南交通大学高压科学与技术实验室,四川成都610031

出　　处：《热加工工艺》2016年第10期72-75,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(11002120);中央高校基本科研业务费资助项目(2682014ZT31)

摘　　要：采用冲击波扰动衰减法研究了材料在高温高压条件下的屈服强度。通过二级轻气炮试验平台,将样品铝冲击加载到58 GPa,并利用电探针测量技术得到样品中冲击波阵面的振荡衰减过程。结合零振幅点相位相对距离与材料屈服强度之间的定量关系,得到铝在冲击压力为58 GPa条件下的屈服强度接近2.32 GPa。The method of shock-wave disturbance damping was used to study the yield strength of materials under high temperature and pressure. When shocked to pressure at 58 GPa through two-stage light gas-gun experment platform, the process of the shock-wave disturbance damping in aluminum sample was measured by electric-pin technique. Combining with the quantitative relationship between yield strength and relative distance value of zero-amplitude point, it can be obtained that the yield strength of the aluminum is determined closely to be 2.32 GPa at 58 GPa impact pressure.

关 键 词：屈服强度 扰动冲击波 数值模拟 铝 

分 类 号：TG113.2[金属学及工艺—物理冶金]