加载路径对铝合金表面残余应力松弛的影响

傅子霞; 马军; 袁海洋; 胡永会

doi:10.15980/j.tzzz.2013.05.011

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加载路径对铝合金表面残余应力松弛的影响
Effects of Loading Path on Residual Stress Relaxation in Aluminum Alloy
2013年33卷第5期页码：403-405
纸质出版日期： 2013 ，
DOI： 10.15980/j.tzzz.2013.05.011

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[1]傅子霞,马军,袁海洋,胡永会.加载路径对铝合金表面残余应力松弛的影响[J].特种铸造及有色合金,2013,33(05):403-405.

Fu Zixia1, Ma Jun1, Yuan Haiyang2, et al. Effects of Loading Path on Residual Stress Relaxation in Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2013,33(5):403-405.
[1]傅子霞,马军,袁海洋,胡永会.加载路径对铝合金表面残余应力松弛的影响[J].特种铸造及有色合金,2013,33(05):403-405. DOI： 10.15980/j.tzzz.2013.05.011.

Fu Zixia1, Ma Jun1, Yuan Haiyang2, et al. Effects of Loading Path on Residual Stress Relaxation in Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2013,33(5):403-405. DOI： 10.15980/j.tzzz.2013.05.011.

摘要

采用X射线衍射应力测试技术

分析了热载荷、力载荷及热-力耦合载荷下7075高强铝合金喷丸试样表面残余应力的松弛现象

讨论了不同热-力载荷加载路径下残余应力松弛的机理与规律。结果表明

不同性质载荷最终对材料微观动、静力学特性的影响类似

引起残余应力松弛效果相当。

Abstract

The surface residual stress relaxations of the shot-peened 7075 high-strength aluminum alloy specimens under thermal loading

force load and coupled thermal-force load were determined by X-ray diffraction technology.Moreover

mechanism and pattern of the stress relaxation under different thermal-force loading paths were discussed.The results show that different loading paths can cause equivalent residual stress relief by influencing the same microscopic dynamic and static mechanic characteristics.