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| Investigation on the Fretting Wear of Ti-6Al-4V Alloy Treated With Wet Peening |
| ZHANG Xinhua1,2,3, FU Xuesong4, GAI Pengtao1,2,3, LI Ruidong4, LI Kang4 |
(1. AVIC Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China;
2. Aeronautical Key Laboratory for Plastic Forming Technologies, Beijing 100024, China;
3. Beijing Key Laboratory of Digital Plasticity Forming Technology and Equipment, Beijing 100024, China;
4. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, China) |
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Abstract Wet peening was taken on Ti-6Al-4V titanium alloy as a surface strengthening treatment. Effect of shot
peening on fretting wear behavior was investigated under different conditions of partial slip, mixed slip and gross slip. The
fretting wear experiment indicates that wet peening has little influence on fretting wear behavior of Ti-6Al-4V titanium
alloy at condition of gross slip. However, wet peening can inhibit crack initiation occurred in accumulation of plastic deformation
zone when the condition is partial slip. It is suggested that the improvement of local yield strength at surface layer
by shot peening was the key reason for avoiding local fatigue damage.
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2017, 
