The VHCF experimental investigation of FV520B-I with surface roughness Ry

International Conference on Computer Information and Automation Engineering

计算机科学;运输工程

Wang, J.L.^1 ; Zhang, Y.L.^1 ; Ding, M.C.^1 ; Zhao, Q.C.^1

School of Mechanical Engineering, Dalian University of Technology, Dalian, China^1

关键词: Different effects;    Experimental investigations;    Fatigue failures;    Research object;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/359/1/012035/pdf
DOI  :  10.1088/1757-899X/359/1/012035

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Different surface roughness type (Ra and Ry) has different effect on the VHCF failure and life. Ra is widely employed as the quantitative expression of the surface roughness, but there are few fatigue failure mechanism analysis and experimental study under surface roughness Ry. The VHCF experiment is conducted out using the specimen with different surface roughness values. The surface roughness Ry is employed as the major research object to investigate the relationship and distribution tendency between the Ry, fatigue life and the distance between internal inclusion and surface, and a new VHCF failure character is proposed.