Fretting cracking behaviour on pre-stressed aluminium alloy specimens

被引：10

作者：

Degat, PR ^{[1
]}

Zhou, ZR ^{[1
]}

Vincent, L ^{[1
]}

机构：

[1] SW JIAOTONG UNIV,TRIBOL LAB,CHENGDU 610031,PEOPLES R CHINA

来源：

TRIBOLOGY INTERNATIONAL | 1997年 / 30卷 / 03期

关键词：

fretting; external static stress; cracking; aluminium alloys;

D O I：

10.1016/S0301-679X(96)00046-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A new testing rig has been developed which enables fretting tests on pre-stressed specimens to be carried out. Three aluminium alloys, AI-LI 2091, AI-Cu 2024 and Al-Zn 7075, were used in the tests. The imposed amplitude D ranged from +/-10 to +/-75 mu m and normal load F-n from 500 to 1000 N. The static external stress sigma(s) was set as sigma(D)/10, sigma(D)/2 and sigma(D) (sigma(D) is the fatigue limit). The tests were carried out with a frequency of 1 or 5 Hz up to 10(6) cycles. In this paper, analysis of fretting behaviour has been carried out using the fretting map concept. The effect of the axial load (prestress) on fretting cracking is emphasized. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：215 / 223

页数：9

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