振动时效消除GH4169合金辗扩成形环件的残余应力的试验研究

杨艳慧1,赵兴东2,刘东1,牛关梅3,苏理瑶1,吕楠1

振动与冲击 ›› 2017, Vol. 36 ›› Issue (4) : 105-109.

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PDF(1696 KB)
振动与冲击 ›› 2017, Vol. 36 ›› Issue (4) : 105-109.
论文

振动时效消除GH4169合金辗扩成形环件的残余应力的试验研究

  • 杨艳慧1,赵兴东2,刘东1,牛关梅3,苏理瑶1,吕楠1
作者信息 +

Vibratory stress relief of rolling formed GH4169 alloy ring

  • YANG Yanhui1,ZHAO Xingdong2,LIU Dong1,NIU Guanmei3,SU Liyao1,LV Nan1
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摘要

对辗扩成形的GH4169合金环件进行振动时效处理试验,采用X射线法测试并比较振动前后环件内的残余应力大小及变化情况,提出残余应力消除率计算公式并对振动效果进行评价。结果表明,试验工艺对环件端面径向和周向残余应力的正应力分量σr和σθ、以及壁面上周向残余应力的正应力分量σθ有消减作用,其消减率为10%~20%;试验工艺不能消减环件壁面上周向残余应力的正应力分量σθ。

Abstract

The vibratory stress relief (VSR) of a rolling formed GH4169 alloy ring was carried out. The residual stress measurements were performed on the ring surface using a standard X-ray diffraction before and after VSR. A formulation calculating the elimination ratio of residual stress was proposed. The results indicate that normal components of residual stressesin radial and circumferential directions on the end surface and those in axial direction on inner surface of the ring are relaxed about 10%-20%; however,the normal residual stresse in axial direction on inner surface of the ring isn’t weakened.

关键词

振动时效 / 残余应力 / GH4169合金 / 环件

Key words

vibratory stress relief / residual stress / GH4169 alloy / ring

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杨艳慧1,赵兴东2,刘东1,牛关梅3,苏理瑶1,吕楠1. 振动时效消除GH4169合金辗扩成形环件的残余应力的试验研究[J]. 振动与冲击, 2017, 36(4): 105-109
YANG Yanhui1,ZHAO Xingdong2,LIU Dong1,NIU Guanmei3,SU Liyao1,LV Nan1. Vibratory stress relief of rolling formed GH4169 alloy ring[J]. Journal of Vibration and Shock, 2017, 36(4): 105-109

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