Improving High Cycle Fatigue Performance of Gas Tungsten Arc Welded Ti6Al4V Titanium Alloy by Warm Laser Shock Peening

2021 ◽  
pp. 106270
Author(s):  
Xiaotai Feng ◽  
Xinlei Pan ◽  
Weifeng He ◽  
Ping Liu ◽  
Zhibin An ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
High Cycle Fatigue ◽  
Laser Shock Peening ◽  
Fatigue Performance ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
Ti6al4v Titanium Alloy ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Shock Peening

Experimental Study on Improving High-Cycle Fatigue Performance of TC11 Titanium alloy by Laser Shock Peening

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
Keyword(s):  
Experimental Study ◽  
Titanium Alloy ◽  
High Cycle Fatigue ◽  
Laser Shock Peening ◽  
Fatigue Performance ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
Shock Peening ◽  
Tc11 Titanium Alloy

Effect of laser shock peening on high cycle fatigue characteristics of 316LN stainless steel

2019 ◽  
Vol 176 ◽  
pp. 103972 ◽  
Author(s):  
Pardhu Yella ◽  
K.V. Rajulapati ◽  
G.V. Prasad Reddy ◽  
R. Sandhya ◽  
P. Prem Kiran ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Cycle Fatigue ◽  
Laser Shock Peening ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
316Ln Stainless Steel ◽  
Fatigue Characteristics ◽  
Shock Peening

Characterization of TC17 Titanium Alloy Treated by Square-Spot Laser Shock Peening

2013 ◽  
Vol 652-654 ◽  
pp. 2378-2383 ◽  
Author(s):  
Zi Wen Cao ◽  
Shui Li Gong ◽  
Yu Gao
Keyword(s):  
Titanium Alloy ◽  
Fatigue Life ◽  
Residual Stresses ◽  
Stress Gradient ◽  
Laser Shock Peening ◽  
Fatigue Performance ◽  
Specimen Thickness ◽  
Laser Shock ◽  
Shock Peening ◽  
Square Spot

Laser shock peening (LSP) is widely known as a cold-worked surface treatment, and this technology has been to greatly improve the fatigue life of many metallic components. Our works focused on laser shock peening with Nd: glass laser system (pulse duration 30ns) and square laser spot size of 4mm×4mm for TC17 titanium alloy. Surface morphology, residual stresses and fatigue performance had been studied for TC17 alloy specimens and blades processed by LSP treatment. The results show that plastic strains in shocked dents become more homogeneous than ones produced by original circle spot with gaussian energy distribution. Surface residual stresses which measured using x-ray diffraction method showed different characteristic as varying specimen thickness, and LSP with overlapping ratio of 8% provided uniform residual stresses on peened surface. Low fluence peening which was implemented at borderline of peened surface was effective to diminish the stress gradient. Compared with mechanical shot peening, LSP attained smoother surface, lower microhardness and better fatigue performance. In a word, Square-spot LSP is an excellent way to improve fatigue life of titanium blade.

Effect of laser shock peening on high cycle fatigue properties of aluminized AISI 321 stainless steel

2021 ◽  
Vol 147 ◽  
pp. 106180 ◽  
Author(s):  
Wei Li ◽  
Huitao Chen ◽  
Weiying Huang ◽  
Jian Chen ◽  
Lu Zuo ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Cycle Fatigue ◽  
Laser Shock Peening ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
Shock Peening ◽  
Aisi 321

Effect of laser shock peening on combined low- and high-cycle fatigue life of casting and forging turbine blades

2018 ◽  
Vol 25 (1) ◽  
pp. 108-119 ◽  
Author(s):  
Cao Chen ◽  
Xiao-yong Zhang ◽  
Xiao-jun Yan ◽  
Jun Ren ◽  
Da-wei Huang ◽  
...  
Keyword(s):  
Fatigue Life ◽  
High Cycle Fatigue ◽  
Turbine Blades ◽  
Laser Shock Peening ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
Shock Peening
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