MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Improvement of Glass Forming Ability of Cu-Ni-Zr-Ti Alloys by Substitution of Hf and Nb
Dong-Myoung LeeJu-Hyun SunSeung-Yong ShinJeong-Chan BaeChi-Hwan Lee
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2008 Volume 49 Issue 6 Pages 1486-1489

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Abstract

New bulk metallic glasses exhibiting a high glass forming ability were formed by a substitution of Hf and Nb for Zr and Ti in quaternary Cu-Ni-Zr-Ti system. An 8 mm-diameter BMG rod was obtained at the Cu50Ni8Zr15Hf3Ti23Nb1 composition by suction casting method. The glass transition temperature, crystallization temperature and reduced glass transition temperature of the BMG were 699 K, 754 K, and 0.59, respectively. Making an alloy system more complex was useful to increase the GFA.

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© 2008 The Japan Institute of Metals and Materials
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