The critical cooling rate of Fe-based mono-sized spherical particles with fully glassy phase

Ying Li, Wei Dong, Yifan Fu, Yi Tan, Ayako Miura, Akira Kawasaki

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

7 Citations (Scopus)

Abstract

A new method to evaluate the critical cooling rate, R c of Fe-based metallic glass alloy was proposed and discussed. [(Fe 0.5Co 0.5) 0.75B 0.2Si 0.05] 96Nb 4 alloy particles were prepared with narrow size distribution and high sphericity by Pulsated Orifice Ejection Method in Ar, He and 50%Ar+50%He mixed atmosphere, respectively. Phase transition of a particle from amorphous to amorphous-crystalline and fully crystalline occurred with the increase of particle diameter. R c of the formation of fully amorphous phase was estimated to be in the range of 700-1100 K/s, lower than that measured by time-temperature transformation diagram of bulk metallic alloy. No change of R c occurred in Ar, He or 50%Ar+50%He mixed atmosphere, which proved it an effective method to evaluate the critical cooling rate of Fe-based metallic glass alloy.

Original languageEnglish
Title of host publicationLatest Development of Applied Materials Technology
Pages185-191
Number of pages7
DOIs
Publication statusPublished - 2012
Event6th Cross-Strait Conference on Advanced Engineering Materials - Nanjing, China
Duration: 2011 Nov 82011 Nov 11

Publication series

NameAdvanced Materials Research
Volume509
ISSN (Print)1022-6680

Other

Other6th Cross-Strait Conference on Advanced Engineering Materials
Country/TerritoryChina
CityNanjing
Period11/11/811/11/11

Keywords

  • Critical cooling rate
  • Metallic glasses
  • Mono-sized spherical particles

ASJC Scopus subject areas

  • Engineering(all)

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