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Modelling of weldment microstructure in non-age hardening Al-based alloys

Zhang, Guowei (2017)
M.Phil. thesis, University of Birmingham.

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Abstract

Aluminium-magnesium (5xxx) alloys have excellent properties such as: high strength to weight ratio, good formability, good corrosion resistance and good weldabiliy. This results in an increasing use of 5xxx alloys in the automotive industry. Fusion welding is a very important joining technique and mechanical properties can be affected during the welding process. In order to model the microstructure and mechanical property evolution during welding, the microstructure and property changes for samples after isothermal heat treatment and welding need to be studied.
In the current study, the microstructure of an as-received material (AA5083 H22) was characterised; the softening kinetic was studied under isothermal heat treatments; the hardness and microstructure in the heat affected zone (HAZ) were studied; and a method for predicting the thermal profile in HAZ was built based on numerical method using Comsol software.

Type of Work:M.Phil. thesis.
Supervisor(s):Strangwood, Martin and Attallah, Moataz
School/Faculty:Colleges (2008 onwards) > College of Engineering & Physical Sciences
Department:School of Metallurgy and Materials
Subjects:QC Physics
QD Chemistry
TN Mining engineering. Metallurgy
Institution:University of Birmingham
ID Code:7300
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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