Microstructure and Mechanical Properties of Welded Joints of Aluminum Alloy AA7020-T6 Obtained by Friction Stir Welding

被引：9
作者：
Srinivasa Rao, G. [1 ]
Rao, V. V. Subba [2 ]
Rao, S. R. K. [3 ]
机构：
[1] SRM Univ, Dept Mech Engn, Delhi NCR Campus, Ghaziabad, UP, India
[2] JNTUK, Dept Mech Engn, Kakinada, India
[3] SSN Coll Engn, Dept Mech Engn, Madras, Tamil Nadu, India
来源：
METAL SCIENCE AND HEAT TREATMENT | 2017年 / 59卷 / 3-4期
关键词：
aluminum alloys; friction stir welding; microstructure; transmission electron microscopy; STABILITY; FATIGUE;
D O I：
10.1007/s11041-017-0117-x
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Plates from alloy AA7020 (Al - Zn - Mg) with a thickness of 4.5 mm are studied after T6 heat treatment and friction stir welding. Tensile and bending tests are performed. The hardness of the welds is measured in transverse direction. The microstructure over cross section of a weld is studied by the methods of light and transmission electron microscopy. The weldability of alloy AA7020 by friction stir welding is shown to be high.
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页码：139 / 144
页数：6
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