Diffusion Bonding between AZ31 Magnesium Alloy and 7075 Aluminum Alloy-Reference-Cited by-同舟云学术

Diffusion Bonding between AZ31 Magnesium Alloy and 7075 Aluminum Alloy

Published:2014-08 Issue: Volume:618 Page:150-153
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Chen Zhi Tong¹,Lin Fei¹,Li Jie¹,Wang Fei¹,Meng Qing Sen¹

Affiliation:

1. Taiyuan University of Technology

Abstract

A study on vacuum diffusion bonding between as-extruded AZ31 magnesium alloy and 7075 aluminum alloy was carried out according to atomic diffusion theory. Recrystallization annealing was used for grain refinement of AZ31 magnesium alloy and 7075 aluminum alloy before the diffusion welding. The quality of the bonding joints was checked by shear test, micro-hardness test and microstructure analysis. Experimental results showed that the welding temperature and holding time have a great effect on the joint shear strength. The maximum of shear strength was 38.41MPa under the temperature of 470°C and the holding time of 60min. The result of micro-hardness measurement showed that the micro-hardness of welded joints was maximum. Three kinds of intermetallic compounds, Mg2A13, MgAl and Mgl7Al12, formed at the interfacial transition zone at 470°C.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.618.150.pdf

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