期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 400, 期 -, 页码 67-71出版社
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2014.05.005
关键词
Metallic glasses; Amorphization; Computer simulations; Cluster
New Ti-based metallic glasses were designed and fabricated in the ternary component alloy system Ti-Zr-Co. The constituent elements of the alloy system were selected based on three empirical rules proposed by Inoue, Turnbull, Senkov and Miracle, and by a new parameter called the effective atomic radius, which is based on the first-principles calculations for 2.78 at.% hcp Ti alloys. The reported scheme based on the concept of binary eutectic clusters was applied to predict the alloy composition that shows a glass transition, Ti44Zr30Co26. We prepared Ti44Zr30+ xCo26- x. Ti46Zr28+ xCO26- x, and Ti48Zr26+ xCO26- x (X = 0, 4, 6, 8) alloy sheets using a single roller method. The new Ti-based ternary metallic glasses exhibited vitrification for many compositions around the predicted composition of Ti44Zr30Co26. The greatest value of the super-cooled region (sic)T-x was 34 K for Ti48Zr32Co20. (C) 2014 Elsevier B.V. All rights reserved.
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