Influence of Laser Shock Texturing on W9 Steel Surface Friction Property

International Conference on Materials Sciences and Nanomaterials

材料科学;物理学

Fan, Yujie^1,2 ; Cui, Pengfei^2 ; Zhou, Jianzhong^1 ; Dai, Yibin^2 ; Guo, Erbin^2 ; Tang, Deye^2

School of Mechanical Engineering, Jiangsu University, Zhenjiang

212013, China^1

School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang

212000, China^2

关键词: Friction coefficients;    Friction performance;    Friction properties;    High-speed steels;    Laser shock processing;    Surface friction;    Surface-texturing;    Textured surface;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/230/1/012010/pdf
DOI  :  10.1088/1757-899X/230/1/012010

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To improve surface friction property of high speed steel, micro-dent arrays on W9Mo3Cr4V surface were produced by laser shock processing. Friction test was conducted on smooth surface and texturing surface and effect of surface texturing density on friction property was studied. The results show that, under the same condition, friction coefficient of textured surface is lower than smooth surface with dent area density less than 6%, wear mass loss, width and depth of wear scar are smaller; Wear resistance of the surface is the best and the friction coefficient is the smallest when dent area density is 2.2%; Friction coefficient, wear mass loss, width and depth of wear scar increase correspondingly as density of dent area increases when dent area density is more than 2.2%. Abrasive wear and adhesive wear, oxidative wear appear in the wear process. Reasonable control of geometric parameters of surface texturing induced by laser shock processing is helpful to improve friction performance.