矿用圆环链条接链环喷丸后残余应力分析
Residual Stress Analysis of the Annular Chain and Link Used in Mine Equipments After Shot Peening
摘 要
采用喷丸强度(SPI)为0.41和0.5 A/mm两种表面喷丸强化的工艺对矿用圆环链条接链环进行强化处理，使用X-350A型X射线应力测定仪对喷丸强化后的接链环表面的残余应力与(211)晶面的半高宽β进行测定。结果表明：高的喷丸强度可以得到更高的残余应力值,对接链环表面进行喷丸强化处理可以有效地引入残余压应力,提高接链环的疲劳寿命。
喷丸
残余应力
chain and link
shot peening
residual stress
Abstract
The annular chain and link used in mine equipments was strengthened by surface shot peening technique which SPI was 0.41 and 0.5 A/mm. Residual stress distribution along the transverse direction of the chain and link surface was investigated by X-ray diffraction techniques. Results showed that higher compressive residual stress was induced by shot peening. Fatigue life of the annular chain and link can be improved by inducing compressive residual stress obtained from due surface shot peening technique.
中图分类号 TG115.22+2.2
所属栏目 试验技术与方法
基金项目 国防科技重点实验室基金项目(9140C8503030705)国家自然科学基金重点项目(50735006)
收稿日期 2007/12/19
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备注汪 勇(1980-),男,讲师。
引用该论文: WANG Yong,MA Li-li,ZHANG Wei,WU Qiu-lin. Residual Stress Analysis of the Annular Chain and Link Used in Mine Equipments After Shot Peening[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(1): 20～21
汪勇,马丽丽,张伟,邬秋林. 矿用圆环链条接链环喷丸后残余应力分析[J]. 理化检验－物理分册, 2009, 45(1): 20～21
被引情况:
【1】汪勇,魏敏,王志民,张伟, "再制造热喷涂层的残余应力与显微特征的对应关系",理化检验－物理分册 47, 1-4(2011)
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参考文献
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【2】张定辁,何家文. 材料中残余应力的X射线衍射分析何作用[M]. 西安: 西安交通大学出版社. 1997: 168-171．
【3】Shenhar A,Gotman I,Radin S,et al. Titanium nitride coatings on surgical titanium alloys produced by a powder immersion reaction assisted coating method: residual stresses and fretting behavior[J]. Surface & Coatings Technology,2000,126(2-3): 210-218．
【4】Townsend P H,Barnett D M. Elastic relationships in layered composite media with approximation for the case of thin films on thick substrate[J]. Journal of Applied Physics,1987,62: 4438-4444．
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