The effect of pitting on the bending fatigue performance of high-strength aluminum alloy

被引：42
|
作者：
Genel, K. [1 ]
机构：
[1] Sakarya Univ, Dept Engn Mech, TR-54187 Adapazari, Turkey
来源：
SCRIPTA MATERIALIA | 2007年 / 57卷 / 04期
关键词：
fatigue; 7075-T6; pitting corrosion; crack initiation; CRACK INITIATION; CORROSION; BEHAVIOR; 7075-T6; PARTICLES;
D O I：
10.1016/j.scriptamat.2007.04.045
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of pitting on the bending fatigue performance of high-strength aluminum alloy has been investigated by conducting a series of rotary bending fatigue tests at 95 Hz. From pitting corrosion studies, it was observed that coarse constituent particles play the main role in the pitting process. The results obtained from fatigue tests revealed that the fatigue strength, based on a fatigue life of 10(7) cycles, was dramatically reduced by the presence of pitting. The reduction in fatigue life depended on the severity of pitting; an approximately 60% decrease in fatigue strength was obtained. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：297 / 300
页数：4
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