LY—12铝高温屈服强度的测量  

THE YIELD STRENGTH MEASUREMENT OF LY-12 ALUMINIUM ALLOY UNDER HIGH TEMPERATURE

作　　者：王春奎[1] 刘小苹[1] 郑融[1] 

机构地区：[1]中国科学院力学研究所

出　　处：《强激光与粒子束》1991年第1期57-64,共8页High Power Laser and Particle Beams

摘　　要：本文介绍LY-12铝合金在常温至400℃动载下(应变率为 10~3/秒),屈服强度的测试及研究。采用一维Hopkinson压杆实验装置及管式高温炉。利用一维应力波传播理论及应变片直接测量两种方法,得到了LY-12铝合金的屈服强度随温度变化的曲线。This paper introduces the yield strength measurement of LY-12 aluminium alloy under dynamic loading in temperature interval from room temperature to 400℃.This research utilizes one dimensional split Hopkinson pressure bars and the tubular furnace. The average stress-strain curves of specimens can be measured under different temperature conditions based on one dimensional theory of stress wave propagation and thier stress - strain curves also can be detected by strain gages directly. The yield strength and yield strength temperature curve can be obtained.

关 键 词：铝合金 高温 屈服强度 测量 

分 类 号：O522.2[理学—高压高温物理]