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Compressive Properties of Magnesium Composites Containing Metastable Al85Ti15 Powder

Lookup NU author(s): Dr Eugene WongORCiD


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Magnesium composites were synthesized by compacting magnesium powder and metastable Al85Ti15 pre-ball milled powder followed by microwave assisted sintering and subsequently hot extrusion. Predetermined amounts of Al and Ti powder corresponding to Al85Ti15 composition were pre-mixed and milled in argon atmosphere for 200 hours in a planetary milling machine with a ball to powder weight ratio of 10:1. Microstructural characterization studies on composite samples revealed reasonably good distribution and interfacial characteristics of reinforcement particles in magnesium matrix. The results of experimental density measurement suggest that dense magnesium composites can be produced by powder metallurgy method with the suitably selected compaction and processing parameters. The addition of Al85Ti15 particles led to a more dimensionally stable composite with enhanced CTE values. The results also indicated that addition of Al85Ti15 particles led to a remarkable improvements in compressive strength and hardness of magnesium without any adverse effect on ductility. The inter-relationship between microstructure and mechanical properties are presented and discussed.

Publication metadata

Author(s): Nguyen QB, Singh A, Seetharaman S, Wong WLE, Gupta M

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 10th International Conference on Magnesium Alloys and Their Applications

Year of Conference: 2015

Pages: 894-901

Acceptance date: 11/10/2015

Publisher: The Korean Institute of Metals and Materials