Effect of post weld heat treatment on tensile properties and microstructure characteristics of friction stir welded armour grade AA7075-T651 aluminium alloy

被引：88
|
作者：
Sivaraj, P. [1 ]
Kanagarajan, D. [1 ]
Balasubramanian, V. [2 ]
机构：
[1] Annamalai Univ, Dept Mfg Engn, Annamalainagar 608002, Tamil Nadu, India
[2] Annamalai Univ, Ctr Mat Joining & Res, Dept Mfg Engn, Annamalainagar 608002, Tamil Nadu, India
来源：
DEFENCE TECHNOLOGY | 2014年 / 10卷 / 01期
关键词：
AA7075 aluminium alloy; Post weld heat treatment; Friction stir welding; Tensile property;
D O I：
10.1016/j.dt.2014.01.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reports the effects of post weld heat treatments, namely artificial ageing and solution treatment followed by artificial ageing, on microstructure and mechanical properties of 12 mm thick friction stir welded joints of precipitation hardenable high strength armour grade AA7075-T651 aluminium alloy. The tensile properties, such as yield strength, tensile strength, elongation and notch tensile strength, are evaluated and correlated with the microhardness and microstructural features. The scanning electron microscope is used to characterie the fracture surfaces. The solution treatment followed by ageing heat treatment cycle is found to be marginally beneficial in improving the tensile properties of friction stir welds of AA7075-T651 aluminium alloy. Copyright (C) 2014, China Ordnance Society. Production and hosting by Elsevier B.V. All rights reserved.
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页码：1 / 8
页数：8
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