Optimising diffusion bonding parameters to maximize the strength of AA6061 aluminium and AZ31B magnesium alloy joints

被引：48

作者：

Fernandus, M. Joseph ^{[1
]}

Senthilkumar, T. ^{[2
]}

Balasubramanian, V. ^{[3
]}

Rajakumar, S. ^{[3
]}

机构：

[1] Srinivasan Engn Coll, Dept Mech Engn, Perambalur 621212, Tamil Nadu, India

[2] Anna Univ Technol Tiruchirappalli, Dept Mech Engn, Tiruchirappalli 620024, Tamil Nadu, India

[3] Annamalai Univ, Dept Mfg Engn, Ctr Mat Joining & Res CEMAJOR, Annamalainagar 608002, Tamil Nadu, India

来源：

MATERIALS & DESIGN | 2012年 / 33卷

关键词：

RESPONSE-SURFACE METHODOLOGY; TENSILE-STRENGTH; STAINLESS-STEEL; OPTIMIZATION; INTERFACE; DESIGN;

D O I：

10.1016/j.matdes.2011.06.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The main difficulty when joining magnesium (Mg) and aluminium (Al) alloys lies in the existence of formation of oxide films and brittle intermetallic in the bond region. However diffusion bonding is a suitable process to join these two materials. The diffusion bonding process parameters such as bonding temperature, bonding pressure, holding time and surface roughness of the bond specimen play a major role to determine the joint strength. In this investigation an attempt was made to develop empirical relationships to predict the lap shear strength and bonding strength of diffusion bonding of AZ31B magnesium and AA6061 aluminium alloys, incorporating above said parameters. Response surface methodology (RSM) was applied to optimise the diffusion bonding process parameters to attain the maximum shear strength and bonding strength of the joint. From this investigation, it is found that the bonds fabricated with the bonding temperature of 430 degrees C, bonding pressure of 13.84 MPa, holding time of 32.50 min and surface roughness of 0.12 mu m exhibited maximum shear strength and bonding strength of 49.39 and 70.04 MPa respectively. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：31 / 41

页数：11

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