Microstructure and damping characteristics of Mg and its composites containing metastable Al85Ti15 particle

Quy B. Nguyen, Mui L.S. Nai, Anh S. Nguyen, Sankaranarayanan Seetharaman, S. Jayalakshmi, Eugene W.W. Leong, Manoj Gupta

Research output: Contribution to journalArticlepeer-review

Abstract

This paper reports for the first time the damping behavior of Mg-Al85Ti15 metastable composites synthesized using near dense blend-press-microwave sinter-hot extrusion methodology. Optical microscopy results show that the metastable particles were located along the grain boundaries and the formation of twins within the grains. In addition, scanning electron microscopy reveals reasonable distribution of particles, good matrix-particle interfacial bonding and minimal presence of microvoids. The damping test results show an increment in damping capacity and damping loss rate with the presence and increasing amount of particles. The effect of microstructure on damping characteristics of magnesium and damping mechanisms are discussed.

Original languageEnglish
Pages (from-to)2565-2573
Number of pages9
JournalJournal of Composite Materials
Volume50
Issue number18
Early online date5 Oct 2015
DOIs
Publication statusPublished - 1 Aug 2016
Externally publishedYes

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