Pseudo float melting state in ladle arc-melt-type furnace for preparing crystalline inclusion-free bulk amorphous alloy

Yoshihiko Yokoyama, Kiyohiro Inoue, Kenzo Fukaura

Research output: Contribution to journalArticle

78 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)2316-2319
Number of pages4
JournalMaterials Transactions
Volume43
Issue number9
DOIs
Publication statusPublished - 2002 Sep

Keywords

  • Ladle-type arc-melting method
  • Perfect melting
  • Squeeze casting
  • ZrCuNiAl bulk amorphous alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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