High Temperature Strength and Workability of Mg/nano-alumina Composite

Project: Research

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Given their low density, magnesium materials are being actively considered for structural applications in automobiles and aerospace structures. However, their creep strength and formability have to be improved to exploit their full potential. A method of enhancing the high temperature creep strength is dispersion strengthening, in which hard ceramic particles are dispersed in the matrix of magnesium or its alloys using powder metallurgy (P/M) techniques. However, P/M compacts generally have lower workability, and therefore their processing has to be done at elevated temperatures where the matrix is soft. The aim of this project is to study the high temperature deformation behaviour of a magnesium/nano-alumina composite with a view to evaluating its high temperature strength and hot workability. Emerging technologies of material synthesis such as P/M will be utilized for composite preparation, and materials modelling techniques for processing will be exploited for optimization and microstructural control during hot working.


Project number7002335
Grant typeSRG
Effective start/end date1/04/0814/10/10