The effects of deep rolling and shot peening on fretting fatigue resistance of Aluminum-7075-T6

被引：120

作者：

Majzoobi, G. H. ^{[1
]}

Azadikhah, K. ^{[2
]}

Nemati, J. ^{[1
]}

机构：

[1] Bu Ali Sina Univ, Fac Engn, Hamadan 65174, Iran

[2] Azad Univ Takestan, Fac Mech, Takestan, Iran

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 516卷 / 1-2期

关键词：

Fretting fatigue; Shot peening (SP); Deep rolling (DR); Aluminum-7075-T6; MECHANICAL SURFACE TREATMENTS; PEENED TI-6AL-4V; AL7075-T6; ALLOY; RESIDUAL-STRESS; BEHAVIOR; TITANIUM; STRENGTH;

D O I：

10.1016/j.msea.2009.03.020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of shot peening (SP) and deep rolling (DR) on fretting fatigue life of Aliminum 7075-T6 is investigated in this work. The results show that fretting fatigue reduces the normal fatigue life by 67%. For low cycle fatigue, SP while being superior to DR, increases the fretting fatigue life by 300% for the specimens tested in this work. For high cycle fatigue, however, the effect of DR on fretting fatigue resistance is more profound than SP such that an increase of about 700% is observed for DR. Numerical simulation of SP and DR is also performed in this work. The results indicate that DR gives rise to a larger compressive residual stress than SP under the conditions considered in the simulations. This agrees quantitatively with the experimental results obtained from high cycle fatigue tests. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：235 / 247

页数：13

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