MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Pseudo Float Melting State in Ladle Arc-Melt-Type Furnace for Preparing Crystalline Inclusion-Free Bulk Amorphous Alloy
Yoshihiko YokoyamaKiyohiro InoueKenzo Fukaura
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2002 Volume 43 Issue 9 Pages 2316-2319

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Abstract

A homogeneous melting state without any crystalline inclusions was achieved in an arc melt furnace by using a ladle arc-melting-type furnace. Molten alloy for pouring can be melted completely by arc heating just above the mold in a pseudo float melting (PFM) state. We combined a ladle arc-melt-type furnace and the squeeze cast method to produce bulk amorphous alloy sheet with a single amorphous phase structure, thereby successfully producing crystalline inclusion-free Zr50Cu30Ni10Al10 bulk amorphous alloy sheets. The tensile strengths of the Zr50Cu30Ni10Al10 bulk amorphous alloys exceeded 1800 MPa, and the bending deflection of the alloys was improved by a factor of 10 using the PFM process.

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© 2002 The Japan Institute of Metals and Materials
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