Analysis of Composition Dependence of Formation of Ternary Bulk Metallic Glasses from Crystallographic Data on Ternary Compounds

Takeuchi, A and Ranganathan, S and Murty, BS and Inoue, A (2008) Analysis of Composition Dependence of Formation of Ternary Bulk Metallic Glasses from Crystallographic Data on Ternary Compounds. In: Reviews on Advanced Materials Science, 18 (1). pp. 56-60.

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Abstract

The composition dependence of formation of ternary bulk metallic glasses (BMGs) has been analyzed with crystallographic data concerning 16873 ternary compounds with a composition triangle named L-M-S diagram for relative atomic size of constituent elements of L (Large), M (interMediate), and S (Small). As well as ternary concsmpounds containing Cu-2 Mg, $Fe_2P$ and $C_6Cr_{23}$ types, three types of ternary BMGs characterized by the relative atomic size of the main element of L- (La-, Zr-, Pd- and Ca-based BMGs), M- (Fe- and Mg-based BMGs) and S-types (Cu-based BMGs) are plotted in the L-M-S diagram. The L-M-S diagram with plots of all ternary compounds reveals a general tendency that the ternary compounds are frequently formed in the S-rich corner as compared to L- and M-rich corners. The L-M-S diagram shows that $Fe_2P$ and $C_6Cr_{23}$ type compounds directly affect the formation of M-type BMGs and also possibly influence the formation of the L-type BMGs. The high glass-forming ability of La-, Zr- and Ca-based BMGs is due to features of their composition regions in the L-M-S diagram wherein ternary compounds infrequently appear and anti-Laves relationship to $Cu_2Mg$ type compounds holds in ternary systems.

Item Type:	Journal Article
Publication:	Reviews on Advanced Materials Science
Publisher:	Institute of Problems Mechanical Engineering
Additional Information:	Copyright of this article belongs to Institute of Problems Mechanical Engineering.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	25 Aug 2008
Last Modified:	19 Sep 2010 04:47
URI:	http://eprints.iisc.ac.in/id/eprint/14832

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