Effect study and application to improve high cycle fatigue resistance of TC11 titanium alloy by laser shock peening with multiple impacts

2014 ◽  
Vol 253 ◽  
pp. 68-75 ◽  
Author(s):  
Xiangfan Nie ◽  
Weifeng He ◽  
Shunlai Zang ◽  
Xuede Wang ◽  
Jie Zhao
2013 ◽  
Vol 40 (8) ◽  
pp. 0803006 ◽  
Author(s):  
聂祥樊 Nie Xiangfan ◽  
何卫锋 He Weifeng ◽  
臧顺来 Zang Shunlai ◽  
王学德 Wang Xuede ◽  
李玉琴 Li Yuqin

2020 ◽  
Vol 141 ◽  
pp. 105868 ◽  
Author(s):  
Kun Yang ◽  
Qi Huang ◽  
Bin Zhong ◽  
Qingyuan Wang ◽  
Qiang Chen ◽  
...  

2019 ◽  
Vol 176 ◽  
pp. 103972 ◽  
Author(s):  
Pardhu Yella ◽  
K.V. Rajulapati ◽  
G.V. Prasad Reddy ◽  
R. Sandhya ◽  
P. Prem Kiran ◽  
...  

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4711
Author(s):  
Xufeng Yang ◽  
Hongjian Zhang ◽  
Haitao Cui ◽  
Changlong Wen

The purpose of this paper is to investigate the performance of laser shock peening (LSP) subjected to fretting fatigue with TC11 titanium alloy specimens and pads. Three laser power densities (3.2 GW/cm2, 4.8 GW/cm2 and 6.4 GW/cm2) of LSP were chosen and tested using manufactured fretting fatigue apparatus. The experimental results show that the LSP surface treatment significantly improves the fretting fatigue lives of the fretting specimens, and the fretting fatigue life increases most when the laser power density is 4.8 GW/cm2. It is also found that with the increase of the laser power density, the fatigue crack initiation location tends to move from the surface to the interior of the specimen.


2019 ◽  
Vol 943 ◽  
pp. 20-25
Author(s):  
Ran Zhu ◽  
Yong Kang Zhang ◽  
Gui Fang Sun ◽  
Pu Li

The confined laser shock peening (LSP) is an innovative surface treatment technique designed to improve the fatigue performance of materials by imparting compressive residual stresses into materials. A 3D finite element model was developed to predict the surface residual stress and plastically affected depth of the TC11 titanium alloy after LSP. The modeling procedure consists of two successive explicit analysis steps. The performance of finite element model was verified by comparing simulated results with the experimental data. With the validated finite element model, the influence of the process parameters (LSP path, thickness of the sample, number of impacts) was investigated on the surface residual stress and plastically affected depth of the TC11 titanium alloy after LSP. Some simulated results can be used to mentor the optimization of the process parameters of LSP.


2021 ◽  
Vol 147 ◽  
pp. 106180 ◽  
Author(s):  
Wei Li ◽  
Huitao Chen ◽  
Weiying Huang ◽  
Jian Chen ◽  
Lu Zuo ◽  
...  

2018 ◽  
Vol 25 (1) ◽  
pp. 108-119 ◽  
Author(s):  
Cao Chen ◽  
Xiao-yong Zhang ◽  
Xiao-jun Yan ◽  
Jun Ren ◽  
Da-wei Huang ◽  
...  

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