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Effect of laser peening on residual stress and micro-hardness of TC4 titanium alloy
Qiao HC(乔红超); Zhao JB(赵吉宾); Zhao, Yixiang; Li L(李论)
作者部门装备制造技术研究室
会议名称2013 International Conference on Advanced Technologies and Solutions in Industry, ICATSI 2013
会议日期March 22-23, 2013
会议地点Taiyuan, Shanxi, China
会议录名称Advanced Materials Research
出版者Trans Tech Publications Ltd
出版地Zurich-Durnten, Switzerland
2013
页码208-212
收录类别EI
EI收录号20133016530594
产权排序1
ISSN号1022-6680
ISBN号978-3-03785-720-5
关键词Hardness Residual Stresses Surface Treatment Titanium Alloys x Ray Diffraction
摘要Laser peening offers potential advantages over conventional peen technologies in terms of the depth of the residual stresses that can be induced, and improvements in surface micro-hardness. The present study was undertaken to understand the effect of laser penning on the properties of titanium alloy, a TC4 titanium alloy work-piece was processed with ND: YAG laser with the wavelength of 1064 nm, pulse energy of 0-10J and pulse width of 12ns, and micro-hardness and residual stress for different laser peening parameters were examined and analyzed by micro-hardness tester and X-ray diffraction. Results are presented and discussed of the residual stress profiles and the micro-hardness profiles, The experimental results show that the satisfying laser peening appearance can be achieved when the pulse energy was 6J, water tamping layer thickness was 1.8mm and ablative layer thickness was 100μm, surface micro-hardness increased by up to 33% and the compressive residual stress on the surface of laser shocked area reached up to -327.8MPa, laser peening improved hardness and residual stress of titanium alloy significantly. The experiment results show that the effect of laser peening was evidently. © (2013) Trans Tech Publications, Switzerland.
语种英语
文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/12393
专题装备制造技术研究室
作者单位1.Shenyang Institute of Automation Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China
2.Institute of Metal Research Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China
推荐引用方式
GB/T 7714
Qiao HC,Zhao JB,Zhao, Yixiang,et al. Effect of laser peening on residual stress and micro-hardness of TC4 titanium alloy[C]. Zurich-Durnten, Switzerland:Trans Tech Publications Ltd,2013:208-212.
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