Enhanced Mechanical Properties of Friction Stir Welded 5083Al-H19 Joints with Additional Water Cooling

被引：0

作者：

B.B.Wang ^{[1
]}

F.F.Chen ^{[2
]}

F.Liu ^{[1
]}

W.G.Wang ^{[1
]}

P.Xue ^{[2
]}

Z.Y.Ma ^{[2
]}

机构：

[1] School of Mechanical Engineering,Liaoning Shihua University

[2] Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences

来源：

Journal of Materials Science & Technology | 2017年 / 33卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Friction stir welding; Aluminum alloy; Water cooling; Microstructure; Mechanical property;

D O I：

暂无

中图分类号：

TG453.9 [];

学科分类号：

080201 ; 080503 ;

摘要：

3-mm-thick 5083Al-H19 rolled plates were friction stir welded(FSW) at tool rotation rates of 800 and200 rpm with and without additional water cooling. With decreasing the rotation rate and applying water cooling, softening in the FSW joint was significantly reduced. At a low rotation rate of 200 rpm with additional water cooling, almost no obvious softening was observed in the FSW joint, and therefore a FSW5083Al-H19 joint with nearly equal strength to the base material(BM) was obtained. Furthermore, the grains in the nugget zone were considerably refined with reducing the heat input and ultrafine equiaxed grains of about 800 nm were obtained in the lowest heat input condition. This work provides an effective method to achieve high property FSW joints of precipitate-hardened and work-hardened Al alloys.

引用

页码：1009 / 1014

页数：6