Glass formation dependence on casting atmosphere in a Zr-Al-Ni-Cu-Pd alloy system

Albertus D. Setyawan, Hidemi Kato, Junji Saida, Akihisa Inoue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Zr65Al7.5Ni10Cu17.5-xPd x (x=0-17.5 at. %) alloy system is found to exhibit a unique dependence of glass-forming ability (GFA) on casting atmosphere during mold-casting process. High-Pd containing alloys (x=7.5-17.5) showed a remarkable increase of critical size (dc) for glass formation, in contrast with the low-Pd containing alloys (x=0-5) in which no significant change in d c was observed, as the pressure of Ar atmosphere varied from vacuum to ambient. The origin of the phenomenon has been successively unveiled by correlating the cooling characteristic during casting process and phase transformation behavior during continuous cooling of the alloy system. The consequence in the structure and property control is investigated and discussed in detail.

Original languageEnglish
Title of host publicationBulk Metallic Glasses - 2007
Pages111-116
Number of pages6
Publication statusPublished - 2008 Dec 1
Event2007 MRS Fall Meeting - Boston, MA, United States
Duration: 2007 Nov 262007 Nov 30

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1048
ISSN (Print)0272-9172

Other

Other2007 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period07/11/2607/11/30

ASJC Scopus subject areas

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

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