Influence of alloy elements on microstructure and mechanical properties of Al/steel dissimilar joint by laser welding/brazing

Jin Yang; Zhishui Yu; Yulong Li; Hua Zhang; Wei Guo; Norman Zhou

doi:10.1007/s40194-017-0540-z

Influence of alloy elements on microstructure and mechanical properties of Al/steel dissimilar joint by laser welding/brazing

Jin Yang^*
, Zhishui Yu
, Yulong Li
, Hua Zhang
, Wei Guo
, Norman Zhou

^*Corresponding author for this work

School of Mechanical Engineering and Automation

Shanghai University of Engineering Science
Nanchang University
University of Waterloo

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

The problem in dissimilar material joining (e.g., Al/steel) is the degradation of joint mechanical properties by formation of the hard and brittle interfacial intermetallic compounds. In the present study, in order to improve the joint mechanical properties, alloy elements Si and Zn are added in the form of Al-Si and Zn-Al filler metals, respectively. The effects of alloy elements on the joints are investigated in terms of interfacial microstructure and mechanical properties. The results have shown that element Si is able to suppress the growth of interfacial reaction layer, which leads to the improvement in the fracture load, while element Zn is capable of reducing the brittleness of reaction layer, and it consequently enhances the fracture load.

Original language	English
Pages (from-to)	427-433
Number of pages	7
Journal	Welding in the World, Le Soudage Dans Le Monde
Volume	62
Issue number	2
DOIs	https://doi.org/10.1007/s40194-017-0540-z
State	Published - 1 Mar 2018

Keywords

Al/steel dissimilar joint
Laser welding/brazing
Mechanical properties
Microstructure

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10.1007/s40194-017-0540-z

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title = "Influence of alloy elements on microstructure and mechanical properties of Al/steel dissimilar joint by laser welding/brazing",

abstract = "The problem in dissimilar material joining (e.g., Al/steel) is the degradation of joint mechanical properties by formation of the hard and brittle interfacial intermetallic compounds. In the present study, in order to improve the joint mechanical properties, alloy elements Si and Zn are added in the form of Al-Si and Zn-Al filler metals, respectively. The effects of alloy elements on the joints are investigated in terms of interfacial microstructure and mechanical properties. The results have shown that element Si is able to suppress the growth of interfacial reaction layer, which leads to the improvement in the fracture load, while element Zn is capable of reducing the brittleness of reaction layer, and it consequently enhances the fracture load.",

keywords = "Al/steel dissimilar joint, Laser welding/brazing, Mechanical properties, Microstructure",

author = "Jin Yang and Zhishui Yu and Yulong Li and Hua Zhang and Wei Guo and Norman Zhou",

note = "Publisher Copyright: {\textcopyright} 2017, International Institute of Welding.",

year = "2018",

month = mar,

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doi = "10.1007/s40194-017-0540-z",

language = "英语",

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TY - JOUR

T1 - Influence of alloy elements on microstructure and mechanical properties of Al/steel dissimilar joint by laser welding/brazing

AU - Yang, Jin

AU - Yu, Zhishui

AU - Li, Yulong

AU - Zhang, Hua

AU - Guo, Wei

AU - Zhou, Norman

PY - 2018/3/1

Y1 - 2018/3/1

N2 - The problem in dissimilar material joining (e.g., Al/steel) is the degradation of joint mechanical properties by formation of the hard and brittle interfacial intermetallic compounds. In the present study, in order to improve the joint mechanical properties, alloy elements Si and Zn are added in the form of Al-Si and Zn-Al filler metals, respectively. The effects of alloy elements on the joints are investigated in terms of interfacial microstructure and mechanical properties. The results have shown that element Si is able to suppress the growth of interfacial reaction layer, which leads to the improvement in the fracture load, while element Zn is capable of reducing the brittleness of reaction layer, and it consequently enhances the fracture load.

AB - The problem in dissimilar material joining (e.g., Al/steel) is the degradation of joint mechanical properties by formation of the hard and brittle interfacial intermetallic compounds. In the present study, in order to improve the joint mechanical properties, alloy elements Si and Zn are added in the form of Al-Si and Zn-Al filler metals, respectively. The effects of alloy elements on the joints are investigated in terms of interfacial microstructure and mechanical properties. The results have shown that element Si is able to suppress the growth of interfacial reaction layer, which leads to the improvement in the fracture load, while element Zn is capable of reducing the brittleness of reaction layer, and it consequently enhances the fracture load.

KW - Al/steel dissimilar joint

KW - Laser welding/brazing

KW - Mechanical properties

KW - Microstructure

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U2 - 10.1007/s40194-017-0540-z

DO - 10.1007/s40194-017-0540-z

M3 - 文章

AN - SCOPUS:85044140122

SN - 0043-2288

VL - 62

SP - 427

EP - 433

JO - Welding in the World, Le Soudage Dans Le Monde

JF - Welding in the World, Le Soudage Dans Le Monde

IS - 2

ER -

Influence of alloy elements on microstructure and mechanical properties of Al/steel dissimilar joint by laser welding/brazing

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Keywords

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