Friction Stir Welding of a Thick Al-Zn-Mg Alloy Plate

被引：18

作者：

Buchibabu, V. ^{[1
]}

Reddy, G. M. ^{[2
]}

Kulkarni, D. ^{[3
]}

De, A. ^{[1
]}

机构：

[1] Indian Inst Technol, Bombay 400076, Maharashtra, India

[2] Def Met Res Lab, Po Kanchanbagh, Hyderabad 500258, Andhra Pradesh, India

[3] Larsen & Toubro Ltd, Heavy Engn IC, Powai Campus, Bombay, Maharashtra, India

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2016年 / 25卷 / 03期

关键词：

aluminum alloy; friction stir welding; hardness; joint strength; toughness; TOOL PIN PROFILE; ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; ZONE FORMATION; MICROSTRUCTURE; PARAMETERS; JOINTS; RDE-40; ECAP;

D O I：

10.1007/s11665-016-1924-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al-Zn-Mg alloys are widely used as structural materials due to high strength-to-weight ratio and impact toughness. As fusion welds in these alloys commonly face hot cracking and macro porosity, friction stir welding is increasingly becoming the preferred recourse. We report here a detailed experimental study on friction stir welding of a specific Al-Zn-Mg alloy with its chemical compositions close to AA7039. The effect of tool rotational speed and welding speed on the weld profile, joint microstructure, and mechanical properties is studied extensively. The results show sound weld profiles and joint properties within the selected range of process conditions. Within the selected range of welding conditions, the welds made at a tool rotational speed of 350 rpm and welding speed of 3 mm/s have showed joint structure, tensile, and impact toughness properties fairly close to that of the base material.

引用

页码：1163 / 1171

页数：9

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