MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Electron Irradiation Induced Crystallization of Supercooled Liquid in Zr Based Alloys
Takeshi NagaseYukichi Umakoshi
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2007 Volume 48 Issue 2 Pages 151-157

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Abstract

Effect of electron irradiation on supercooled liquid in Zr66.7Cu33.3, Zr65Al7.5Cu27.5 and Zr60Al15Ni25 metallic glasses was investigated by in situ TEM observation. The electron irradiation induced crystallization occurred in the supercooled liquid with nucleation and growth mode similar to that by thermal annealing. The electron irradiation accelerated crystallization resulting in different size and morphology of precipitates from those by thermal annealing. There was no significant difference in phase selection and crystallization mode of supercooled liquid between thermal annealing and electron irradiation, while electron irradiation induced crystallization behavior of an amorphous phase was different from that of thermal crystallization.

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© 2007 The Japan Institute of Metals and Materials
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