Mechanical properties of Mg–Li–Cu–Y metallic glass composites

Sergio Gonzalez Sanchez, Dimitri Louzguine-Luzgin, John Perepezko, Akihisa Inoue

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11 Citations (Scopus)

Abstract

The mechanical behaviour of Mg65−xLixCu25Y10 (x = 9, 14 and 19) metallic glass composites has been studied. For 9 and 14 at.% Li the alloys exhibit a brittle behaviour. The microstructure of the alloy containing 9 at.% Li consists of a bcc Mg-Li solid solution phase embedded in an amorphous phase. Higher concentrations of Li promote the formation of the bcc phase, Mg2Cu and also a small volume fraction of Y-containing intermetallic. The alloy with the highest Li content, i.e. 19 at.%, exhibits a compressive engineering strain of 25%. The hierarchical microstructure design with multiphase components allows for the operation and interaction of different deformation behaviour to provide for useful levels of plastic deformation.
Original languageEnglish
Pages (from-to)S114-S116
JournalJournal of Alloys and Compounds
Volume504
Issue numberS1
DOIs
Publication statusPublished - Aug 2010

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