Study of TC4 Titanium Alloy Based on the Variation of Damping Properties Introduced by Warm Laser Peening

Applied laser ◽  
2015 ◽  
Vol 35 (1) ◽  
pp. 35-39
Author(s):  
周建忠 Zhou Jianzhong ◽  
朱炜立 Zhu Weili ◽  
孟宪凯 Meng Xiankai ◽  
黄舒 Huang Shu ◽  
盛杰 Sheng Jie
Keyword(s):  
Titanium Alloy ◽  
Laser Peening ◽  
Damping Properties ◽  
Tc4 Titanium Alloy

Effect of Laser Peening on Residual Stress and Micro-Hardness of TC4 Titanium Alloy

2013 ◽  
Vol 341-342 ◽  
pp. 246-250
Author(s):  
Hong Chao Qiao ◽  
Ji Bin Zhao ◽  
Yi Xiang Zhao ◽  
Lun Li
Keyword(s):  
Residual Stress ◽  
Titanium Alloy ◽  
Layer Thickness ◽  
Pulse Energy ◽  
Work Piece ◽  
Laser Peening ◽  
Micro Hardness ◽  
X Ray Diffraction ◽  
Hardness Tester ◽  
Tc4 Titanium Alloy

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.

Effect of laser peening with different power densities on vibration fatigue resistance of hydrogenated TC4 titanium alloy

2020 ◽  
Vol 131 ◽  
pp. 105335 ◽  
Author(s):  
Shu Huang ◽  
Jiaxi Zhao ◽  
Jie Sheng ◽  
Xiankai Meng ◽  
Emmanuel Agyenim-Boateng ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Fatigue Resistance ◽  
Laser Peening ◽  
Tc4 Titanium Alloy ◽  
Vibration Fatigue ◽  
Power Densities

Effect of Laser Peening on Residual Stress and Micro-Hardness of TC4 Titanium Alloy

2013 ◽  
Vol 710 ◽  
pp. 208-212
Author(s):  
Hong Chao Qiao ◽  
Ji Bin Zhao ◽  
Yi Xiang Zhao ◽  
Lun Li
Keyword(s):  
Residual Stress ◽  
Titanium Alloy ◽  
Layer Thickness ◽  
Pulse Energy ◽  
Work Piece ◽  
Laser Peening ◽  
Micro Hardness ◽  
X Ray Diffraction ◽  
Hardness Tester ◽  
Tc4 Titanium Alloy

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.

Analysis on Laser Processing Parameters and Strengthening Effects of Laser Peening of TC4 Titanium Alloy

2013 ◽  
Vol 50 (4) ◽  
pp. 041405
Author(s):  
乔红超 Qiao Hongchao ◽  
赵吉宾 Zhao Jibin ◽  
于彦凤 Yu Yanfeng
Keyword(s):  
Titanium Alloy ◽  
Laser Processing ◽  
Processing Parameters ◽  
Laser Peening ◽  
Tc4 Titanium Alloy
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