MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Effect of Ni Addition on the Glass Forming Ability and Mechanical Properties in Cu60Zr22Ti18 Metallic Glass Alloy
Dong-Myoung LeeSeung-Yong ShinJu-Hyun SunJin-Kyu LeeChi-Hwan Lee
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2008 Volume 49 Issue 7 Pages 1558-1562

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Abstract

This paper investigates the effects of Ni addition on the glass forming ability (GFA) and mechanical properties in Cu60−xNixZr22Ti18 (x=0∼15) metallic glass alloys. Partial substitution of Cu by Ni in the alloys improved the GFA. By increasing Ni content x from 0 to 6, the supercooled liquid region (ΔTx) and crystallization temperature (Tx) were increased, whereas the liquidus temperature decreased to reach the lowest value at x=6. The lowering of liquidus temperature improved the GFA, and the maximum GFA of 6 mm in diameter was obtained at x=6. The compressive strength and micro hardness of the alloys were raised by increasing Ni content, and the Ni containing alloy showed some macroscopic plasticity after yielding.

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© 2008 The Japan Institute of Metals and Materials
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