An investigation on diffusion bonding of aluminum and magnesium using a Ni interlayer

被引：100

作者：

Zhang, Jian ^{[1
]}

Luo, Guoqiang ^{[1
]}

Wang, Yiyu ^{[1
]}

Shen, Qiang ^{[1
]}

Zhang, Lianmeng ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 83卷

基金：

中国国家自然科学基金;

关键词：

Microstructure; Diffusion; Interface; Ni interlayer; Al-Mg; MG ALLOY; INTERMETALLIC COMPOUNDS; MECHANICAL-PROPERTIES; STAINLESS-STEEL; MICROSTRUCTURE; AL; INTERFACE; STRENGTH; COATINGS; JOINTS;

D O I：

10.1016/j.matlet.2012.06.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Diffusion bonding aluminum and magnesium using a Ni interlayer was investigated for the first time. The bonding trials were carried out at 440 degrees C for different time under 1 MPa in a vacuum of 6 x 10(-3) Pa. The interfaces were investigated by means of SEM, EPMA, XRD and Vickers hardness test. The results showed that dissimilar metals of Mg/Al could be successfully joined by diffusion bonding with a Ni interlayer and the Mg-Al intermetallic compounds were impeded. From Al side to Mg side, there was Al substrate, Al-Ni reaction, layer. Ni interlayer, Mg-Ni reaction layer. Mg substrate. The microhardness in the Al-Ni reaction layer and Mg-Ni reaction layer increased sharply, which were 201.5 Hv and 244.1 Hv. The fracture occurred in the intermetallic compound layer of the Mg-Ni reaction layer, where the Mg2Ni phase appeared on both Al and Mg surfaces. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：189 / 191

页数：3

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