On the damage mechanisms of bending fretting fatigue

被引：32

作者：

Peng, J. F. ^{[1
]}

Zhu, M. H. ^{[1
]}

Cai, Z. B. ^{[1
]}

Liu, J. H. ^{[1
]}

Zuo, K. C. ^{[1
]}

Song, C. ^{[1
]}

Wang, W. J. ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Tract Power State Key Lab, Tribol Res Inst, Chengdu 610031, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2014年 / 76卷

基金：

中国国家自然科学基金;

关键词：

Fretting fatigue; Bending fretting; Damage mechanism; Dislocation; CONTACT; BEHAVIOR; TI-6AL-4V;

D O I：

10.1016/j.triboint.2013.12.018

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The bending fretting fatigue tests of 316L austenitic stainless steel, 7075 aluminum alloy, 1250 steel and 30CrNiMo8 steel have been carried out under different bending stresses and normal contact stresses. The S-N curves of varied materials are set up accordingly, which present the shape like the Greek letter "epsilon" and can be divided into three running regimes similar to fretting wear. Based on the OM, SEM, EDS and TEM, the fretting fatigue damages have been analyzed in detail. The fretting wear damage mechanisms of fretting zone are abrasive wear, oxidative wear and delamination, a damage physical model in the MFR is proposed. According to the TEM results, two crack initiation mechanisms have been proposed based on different material characteristics. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：133 / 141

页数：9