Influence of frequency on fretting fatigue damage behavior of Al-Zn-Mg alloy

摘要：

　　Influence of frequency on fretting fatigue damage behavior of Al-Zn-Mg alloy was studied in this paper.Fretting fatigue lives and damage characteristics of Al-Zn-Mg alloy were researched under different frequencies.Macroscopic tests and microscopic analysis were used to study on influence of frequency on fretting fatigue damage behavior of Al-Zn-Mg alloy.Fatigue lives would be greatly reduced by fretting under the experimental conditions in this paper.With frequency increasing, fretting fatigue lives were firstly decreased and then increased (f=9Hz).Fretting scar, which was the important reason for fretting fatigue crack initiation, was caused by embedding debris; eventually, crack initiated at the edge of the fretting scar.Fretting fatigue fracture is a whole process of crack initiation, propagation and final fracture.And final fracture increased with frequency reducing, which was generally occurred near the center of the fracture.

关键词： Al-Zn-Mg alloy frequency fretting fatigue

作者: Liu Dan Jiang Xiaosong Sun Peiqiu Shen Yue

作者单位: School of Materials Science and Engineering,Southwest Jiaotong University,Chengdu 610031,P.R.China

会议类型: 国际会议

会议名称: the 2013 2nd International Conference on Metallurgy Technology and Materials(ICMTM2013)(第二届冶金技术与材料国际会议)

会议地点: 香港

会议语种:英文

页码: 407-412

在线出版日期: 2013-06-25（万方平台首次上网日期，不代表论文的发表时间）