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Nanocrystallization of the $Fd_3m$ $Ti_2Ni$-Type Phase in Hf-Based Metallic Glasses

Louzguine, DV and Ko, MS and Ranganathan, S and Inoue, A (2001) Nanocrystallization of the $Fd_3m$ $Ti_2Ni$-Type Phase in Hf-Based Metallic Glasses. In: Journal of Nanoscience and Nanotechnology, 1 (2). pp. 185-190.

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Abstract

Three ternary and four quaternary hafnium-based alloys have been rapidly solidified, and the devitrification of the resultant metallic glasses has been studied to evaluate the influence of composition on the products. The formation of metastable and stable $Fd_3m$ (Pearson symbol cF96) $Ti_2Ni$ was evident whenever the alloy composition in the stable equilibrium diagrams showed this phase. The replacement of nickel by iron led to the appearance of this phase in preference to the icosahedral quasicrystal. Several common features of the amorphous alloys that form either nanoscale icosahedral or cF96 Ti2Ni-type phases on devitrification are discussed and summarized.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Scientific Publishers.
Keywords: Metallic Glass;Rapid Solidification;Devitrification; Metastable Phase.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 07 Aug 2008
Last Modified: 27 Aug 2008 13:42
URI: http://eprints.iisc.ernet.in/id/eprint/15500

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