Effects of Laser Shock Peening on Microstructure and Properties in 32CrNi3MoVE Steel

2021 ◽  
Author(s):  
Boyu Sun ◽  
Jibin Zhao ◽  
Hongchao Qiao ◽  
Ying Lu
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Wear Mechanism ◽  
Laser System ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Untreated Sample ◽  
Microstructure And Properties ◽  
Shock Peening ◽  
Overlap Rate

Abstract The effects of laser shock peening (LSP) on microstructure and properties of 32CrNi3MoVE steel are investigated. Laser shock peening experiment was undertaken using a laser system with the pulse-width of 15ns, 50% overlap rate, and pulse-energy of 7J. The microhardness, residual stress, microstructure, and wear resistance of the laser shock peening 32CrNi3MoVE steel samples were measured. The results show that the microhardness and residual compressive stress distribution is remarkably improved by LSP. High-density dislocations are generated and the width of the martensite grains is reduced to a certain extent, indicating the phenomenon of grain compression. The friction coefficient and wear rate of the material reduces so that the wear resistance is correspondingly improved. The wear mechanism of the untreated sample is abrasive wear and adhesive wear, the wear mechanism of the treated samples is abrasive wear.

Study on the abrasive wear behavior of laser shock peening Ti-6Al-4V titanium alloy under controlled cycling impact

Wear ◽  
2019 ◽  
Vol 426-427 ◽  
pp. 112-121 ◽  
Author(s):  
Yu Lin ◽  
Zhen-bing Cai ◽  
Zheng-yang Li ◽  
Mei-gui Yin ◽  
Wen-jian Wang ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Abrasive Wear ◽  
Wear Behavior ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Abrasive Wear Behavior ◽  
Shock Peening

Effects of Laser Shock Peening on the Wear and Degradation Behaviors of Magnesium Alloys

2016 ◽  
Author(s):  
Ruixia Zhang ◽  
Xiaoning Hou ◽  
Xianfeng Zhou ◽  
Hongyu Gao ◽  
Steven Mankoci ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Body Fluid ◽  
Laser Shock Peening ◽  
Mg Alloy ◽  
Laser Shock ◽  
Before And After ◽  
Immersion Testing ◽  
Degradation Behaviors ◽  
Shock Peening

In this study, we investigated the mechanical properties of AZ31B Mg alloy before and after laser shock peening (LSP). The hardness of the AZ31B Mg alloy increased from 57 HV to 69 HV after LSP. The yield strength increased from 128 MPa to 152 MPa. Wear resistance was significantly improved after LSP. Immersion testing showed that LSP did not significantly increase the element release and weight loss in simulated body fluid. We have demonstrated that LSP is an effective way to improve the mechanical properties of the AZ31B Mg alloy.

Improving impact wear resistance of Ti-6Al-4V alloy treated by laser shock peening

2019 ◽  
Vol 29 (7) ◽  
pp. 1439-1448 ◽  
Author(s):  
Mei-gui YIN ◽  
Zhen-bing CAI ◽  
Zhen-yang LI ◽  
Zhong-rong ZHOU ◽  
Wen-jian WANG ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Laser Shock Peening ◽  
Impact Wear ◽  
Laser Shock ◽  
Shock Peening

Experimental Study of Tensile and Wear Resistance Properties of ZK60 Magnesium Alloy Treated by Laser Shock Peening

2016 ◽  
Vol 53 (10) ◽  
pp. 101406
Author(s):  
王浩 Wang Hao ◽  
黄亿辉 Huang Yihui ◽  
张文武 Zhang Wenwu ◽  
茹浩磊 Ru Haolei ◽  
王声波 Wang Shengbo
Keyword(s):  
Experimental Study ◽  
Wear Resistance ◽  
Magnesium Alloy ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Shock Peening ◽  
Zk60 Magnesium Alloy

The Effects of Laser Shock Peening on Microstructure and Properties of Metals and Alloys: A Review

2011 ◽  
Vol 347-353 ◽  
pp. 1596-1604 ◽  
Author(s):  
Jin Liang Hu ◽  
Jun Lou ◽  
Hong Chan Sheng ◽  
Shu Hui Wu ◽  
Guo Xing Chen ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Processing Parameters ◽  
Metals And Alloys ◽  
Laser Shock Peening ◽  
Current Status ◽  
Laser Shock ◽  
Excellent Performance ◽  
Microstructure And Properties ◽  
Attractive Candidate ◽  
Shock Peening

This study reviews the current status of the understanding and development of laser shock peening(LSP) on various metals. The influence of processing parameters on residual stresses, microstructure and properties are discussed. Special emphasis is placed on analyzing their underlying interrelationship between the LSP induced modifications. Finally, recommendations for further study are listed. Results indicate that the combination of uniquely flexible process and excellent performance makes the laser shock peening an attractive candidate for surface optimization applications.

Laser shock peening and its effects on microstructure and properties of additively manufactured metal alloys: a review

2020 ◽  
Vol 2 (2) ◽  
pp. 022001
Author(s):  
Michael Munther ◽  
Tyler Martin ◽  
Ali Tajyar ◽  
Lloyd Hackel ◽  
Ali Beheshti ◽  
...  
Keyword(s):  
Laser Shock Peening ◽  
Metal Alloys ◽  
Laser Shock ◽  
Microstructure And Properties ◽  
Shock Peening
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