Abnormal change in dynamic mechanical behavior of metallic glass by laser shock peening

2021 ◽  
Vol 138 ◽  
pp. 106875
Author(s):  
Yansen Li ◽  
Yanpeng Wei ◽  
Xu Yi ◽  
Kun Zhang ◽  
Bingchen Wei
Keyword(s):  
Metallic Glass ◽  
Mechanical Behavior ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Dynamic Mechanical ◽  
Dynamic Mechanical Behavior ◽  
Shock Peening

scholarly journals A Novel Micro-Scale Plastic Deformation Feature on a Bulk Metallic Glass Surface under Laser Shock Peening

2013 ◽  
Vol 30 (3) ◽  
pp. 036201 ◽  
Author(s):  
Yan-Peng Wei ◽  
Bing-Chen Wei ◽  
Xi Wang ◽  
Guang-Yue Xu ◽  
Lei Li ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Surface ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Micro Scale ◽  
Deformation Feature ◽  
Shock Peening

scholarly journals Laser Shock Peening on Zr-based Bulk Metallic Glass and Its Effect on Plasticity: Experiment and Modeling

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yunfeng Cao ◽  
Xie Xie ◽  
James Antonaglia ◽  
Bartlomiej Winiarski ◽  
Gongyao Wang ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Shock Peening

scholarly journals Effect of Laser Shock Peening on the Surface Morphology of Metallic Glasses

2017 ◽  
Vol 898 ◽  
pp. 689-695
Author(s):  
Yan Sen Li ◽  
Kun Zhang ◽  
Gui Hua Duan ◽  
Guang Yue Xu ◽  
Yu Hang Wei ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Surface Morphology ◽  
Metallic Glasses ◽  
Close Correlation ◽  
Laser Shock Peening ◽  
Morphology Evolution ◽  
Laser Shock ◽  
Localized Structures ◽  
Shock Peening ◽  
Surface Morphologies

Laser shock peening is a promising effective approach for improving mechanical properties of metallic glass. In this work, laser shock peening was employed to study the surface morphologies of metallic glasses with different toughness. Numerous localized circular-or arc-shaped structures, with the size of 5~20 μm, were observed in the shock treated surface. The number of these unique localized structures has a close correlation to the ability of metallic glass to accommodate plastic deformation. In addition, the surface morphology evolution of Zr-based metallic glasses with different crystalline degrees is also discussed, indicating that the circular-or arc-shaped structures only appear in fully amorphous system.

Fabrication and Characterization of Micro-Dent Produced by Laser Shock Peening on Zr-Based Bulk Metallic Glass

2016 ◽  
Vol 849 ◽  
pp. 14-21
Author(s):  
Yun Hu Zhu ◽  
Jie Fu ◽  
Chao Zheng ◽  
Zhong Ji
Keyword(s):  
Plastic Deformation ◽  
Laser Pulse ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Pulse Energy ◽  
Laser Pulse Energy ◽  
Laser Energy ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Shock Peening

A Zr41.2Ti13.8Cu12.5Ni10Be22.5 (vit1) bulk metallic glass was processed by Nd: Glass laser pulses with duration 30ns and energy in the range 20 to 30J. The surface morphology and surface micro-hardness of the vit1 metallic glass, treated with varying laser energy, had been studied in detail. Laser shock peening induced plastic deformation and caused a micro-dent to be generated on the vit1 surface. The optical profiling tests showed that laser pulse energy greatly influenced the diameter and depth of the micro-dents. The surface roughness which was caused by various laser pulse energy was assessed and characterized. The three-dimensional surface topography of the laser treated region on vit1 surfaces had been characterized. In addition the plastic deformation features were also studied.

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