Effect of Controlled Shot Peening and Laser Shock Peening on the Fatigue Performance of 2024-T351 Aluminum Alloy

2003 ◽  
Vol 12 (4) ◽  
pp. 414-419 ◽  
Author(s):  
C. A. Rodopoulos ◽  
J. S. Romero ◽  
S. A. Curtis ◽  
E. R. de los Rios ◽  
D. P. Peyre
Keyword(s):  
Aluminum Alloy ◽  
Shot Peening ◽  
Laser Shock Peening ◽  
Fatigue Performance ◽  
Laser Shock ◽  
Shock Peening

scholarly journals Strengthening effect of laser shock peening on 7075-T6 aviation aluminum alloy

2020 ◽  
Vol 12 (8) ◽  
pp. 168781402095217
Author(s):  
Junhao Zhang ◽  
Xiuquan Cheng ◽  
Qinxiang Xia ◽  
Chang Yan
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Shot Peening ◽  
Strain Distribution ◽  
Equivalent Strain ◽  
Laser Shock Peening ◽  
Strengthening Effect ◽  
Laser Shock ◽  
Shock Peening ◽  
Overlap Ratio

The strengthening effect and uniformity of residual stress and strain of 7075-T6 aviation aluminum after laser shock peening were investigated. The finite element simulation model of laser shot peening on 7075-T6 aviation aluminum alloy was established and verified. On this basis and combined with experiment, the microstructure, residual stress distribution and equivalent strain distribution of 7075-T6 aviation aluminum alloy after laser shock peening were studied. An index U for evaluating the strain uniformity in the peened area was proposed based on the statistical processing of the equivalent strain distribution in the peened area. The results show that the average grain size on the peened surface of the specimen was refined to 20–30 μm after LSP, and a residual compressive stress layer with thickness of about 0.5 mm was induced on the surface. Grain refinement and residual compressive stress can promote the strength and fatigue properties of 7075-T6 aviation aluminum alloy. The minimum value of U is obtained in the 6 × 6 spot array (the corresponding overlap ratio is 58%), which suggest that the most uniform deformation peened area can be obtained by using 58% overlap ratio in the laser shot peening process, which can avoid stress concentration and improve fatigue life.

WC Nano-Particle Implanting Strengthening on Aluminum Alloy Surface Via Laser Shock Peening

2011 ◽  
Vol 38 (12) ◽  
pp. 1203006
Author(s):  
吕亮 Lü Liang ◽  
黄婷 Huang Ting ◽  
钟敏霖 Zhong Minlin
Keyword(s):  
Aluminum Alloy ◽  
Laser Shock Peening ◽  
Alloy Surface ◽  
Nano Particle ◽  
Laser Shock ◽  
Shock Peening ◽  
Aluminum Alloy Surface

Cut-Off Value of Detail Fatigue Rated Strength of TC4 Titanium Alloy with Compound Strengthening Treatment by Laser Shock Peening and Shot Peening

2020 ◽  
Vol 47 (5) ◽  
pp. 0502006
Author(s):  
刘亚鹏 Liu Yapeng ◽  
史志俊 Shi Zhijun ◽  
赵一昭 Zhao Yizhao ◽  
朱亮 Zhu Liang ◽  
刘马宝 Liu Mabao
Keyword(s):  
Titanium Alloy ◽  
Shot Peening ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Tc4 Titanium Alloy ◽  
Shock Peening

Effects of Laser Shock Peening and Ultrasonic Shot Peening on Fatigue Property of 1Cr11Ni2W2MoV Stainless Steel

2013 ◽  
Vol 50 (5) ◽  
pp. 051403 ◽  
Author(s):  
赖志林 Lai Zhilin ◽  
汪诚 Wang Cheng ◽  
李应红 Li Yinghong ◽  
周留成 Zhou Liucheng ◽  
何卫锋 He Weifeng ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Shot Peening ◽  
Fatigue Property ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Ultrasonic Shot Peening ◽  
Shock Peening

Improving creep properties of 7075 aluminum alloy by laser shock peening

2018 ◽  
Vol 349 ◽  
pp. 725-735 ◽  
Author(s):  
J.T. Wang ◽  
L. Xie ◽  
K.Y. Luo ◽  
W.S. Tan ◽  
L. Cheng ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Laser Shock Peening ◽  
7075 Aluminum Alloy ◽  
Laser Shock ◽  
Creep Properties ◽  
Shock Peening
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