Friction stir weld assisted diffusion bonding of 5754 aluminum alloy to coated high strength steels

被引：82

作者：

Haghshenas, M. ^{[1
]}

Abdel-Gwad, A. ^{[2
]}

Omran, A. M. ^{[2
]}

Gokce, B. ^{[3
]}

Sahraeinejad, S. ^{[1
]}

Gerlich, A. P. ^{[1
]}

机构：

[1] Univ Waterloo, Dept Mech & Mechatron Engn, Waterloo, ON N2L 3G1, Canada

[2] Al Azhar Univ, Fac Engn, Dept Min & Met, Qena, Egypt

[3] Afyon Kocatepe Univ, Dept Mech Engn, Afyon, Turkey

来源：

MATERIALS & DESIGN | 2014年 / 55卷

关键词：

Diffusion bonding; Coated steel; Intermetallic; Aluminum; Dissimilar; MECHANICAL-PROPERTIES; LAP JOINTS; MICROSTRUCTURE; AL; PARAMETERS; INTERFACE;

D O I：

10.1016/j.matdes.2013.10.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present paper friction stir-induced diffusion bonding is used for joining sheets of 5754 aluminum alloy to coated high strength steels (DP600 and 22MnB5) by promoting diffusion bonding in an overlap configuration. Mechanical performance and microstructures of joints were analyzed by overlap shear testing, metallography, and X-ray diffraction. Our results show that the strength of joint is dependent upon tool travel speed and the depth of the tool pin relative to the steel surface. The thickness and types of intermetallic compounds formed at the interface play a significant role in achieving a joint with optimum performance. That is, the formation of high aluminum composition intermetallic compounds (i.e. Al5Fe2) at the interface of the friction stir lap joint appeared to have a more negative effect on joint strength compared to the presence of high iron composition intermetallic phases (i.e. FeAl). This is in agreement with previously reported findings that FeAl intermetallic can improve the fracture toughness and interface strength in Al/St joints. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.

引用

页码：442 / 449

页数：8

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