MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Entangled Duplex Structure and Polycrystalline Globule Formation through Multistep Liquid-Phase Separation in Cu–Fe–Zr–B Alloys
Takeshi Nagase
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2014 Volume 55 Issue 2 Pages 304-310

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Abstract

A unique entangled duplex structure was formed in rapidly solidified Cu–Fe–Zr–B alloys with Cu/Fe ratio = 1/1 and 6/1. Polycrystalline globules, embedded in a Cu crystalline matrix, were also observed in Cu35Fe35Zr10B20 and Cu60Fe10Zr10B20 alloys; this rapidly solidified structure was drastically different from that of Cu–Fe–Zr–B alloys enriched in Fe. Multi-step liquid phase separation can lead to unique microstructure formation during rapid solidification.

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© 2013 Japan Foundry Engineering Society
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