Study on rotational fretting wear of 7075 aluminum alloy

被引：38

作者：

Mo, J. L. ^{[1
]}

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

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

Luo, J. ^{[1
]}

Zhou, Z. R. ^{[1
]}

机构：

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

来源：

TRIBOLOGY INTERNATIONAL | 2010年 / 43卷 / 5-6期

基金：

中国国家自然科学基金;

关键词：

Fretting wear; Rotational fretting; 7075 aluminum alloy;

D O I：

10.1016/j.triboint.2009.12.032

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Rotational fretting wear tests in a ball-on-fiat configuration have been successfully realized on a special rotational fretting rig developed from an ultra-low-speed reciprocating rotational driver. The rotational fretting behavior of 7075 aluminum alloy against 52 100 steel was studied under different angular displacement amplitudes and normal loads. The results showed that both F-t-0 and F-t/F-n curves can be used to characterize the rotational fretting running behavior, which exhibited different curve shapes and variation trends in different fretting running regimes. The rotational fretting behavior of 7075 aluminum alloy was strongly dependent on the angular displacement amplitude, normal load and number of cycles. The wear of 7075 aluminum alloy was characterized by slight attrition in the partial slip regime, while a combination of delamination, abrasive and oxidative wear was found in the slip and mixed fretting regimes. The formation of a central bulge probably due to plastic flow was observed under gross slip condition of the rotational fretting mode. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：912 / 917

页数：6

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