Fatigue behavior of friction stir weld joints of Al-Zn-Mg alloy AA7039 developed using base metal in different temper condition

被引：32
|
作者：
Sharma, Chaitanya [1 ,2 ]
Dwivedi, Dheerendra Kumar [2 ]
Kumar, Pradeep [2 ]
机构：
[1] Rustamji Inst tute Technol, BSF Acad Tekanpur, Dept Mech Engn, Tekanpur 475005, Madhya Pradesh, India
[2] Indian Inst Technol, Mech & Ind Engn Dept, Roorkee 247667, Uttar Pradesh, India
来源：
MATERIALS & DESIGN | 2014年 / 64卷
关键词：
Friction stir welding; Fatigue behavior; Temper condition; Microstructure; Fracture mechanism; Aluminum alloy; MECHANICAL-PROPERTIES; CRACK GROWTH; ALUMINUM-ALLOYS; RESIDUAL-STRESS; MICROSTRUCTURE; PARAMETERS; PROPERTY; SPEED; MIG;
D O I：
10.1016/j.matdes.2014.07.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents the influence of base metal temper conditions (O, W and T6) on fatigue behavior of friction stir weld joints of Al-Zn-Mg alloy AA7039. Fatigue tests were performed at stress ratio of 0.1 and tensile to tensile stress in the range of 85-215 MPa to develop S-N curves. Fractured surfaces were investigated by SEM to determine the mode of fracture. On the basis of this study, friction stir welding of Al-Zn-Mg alloy AA7039 is recommended to be performed in W temper condition because of better tensile properties and superior fatigue strength. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：334 / 344
页数：11
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