Precipitation of nano-scale icosahedral quasicrystalline phase in Hf-Al-Ni-Cu metallic glass promoted by addition of Ti

Chunfei Li, Junji Saida, Akihisa Inoue

Research output: Contribution to journal › Article › peer-review

Abstract

The primary precipitation phase for the Hf62Al10Ni8Cu20 metallic glass is face centered cubic (FCC)-Hf2Ni and those for Hf57Al10Ni8Cu20Ti5 are FCC-Hf2Ni and I-phase. Addition of Ti to the Hf62Al10Ni8Cu20 alloy is essential for the formation of I-phase. Retardation of the precipitation of FCC-Hf2Ni in Hf62Al10Ni8Cu20 is considered as one of the reasons for the formation of I-phase caused by the addition of Ti. This effect is explained by considering the size mismatch between the constitute elements.

Original languageEnglish
Pages (from-to)1257-1260
Number of pages4
JournalScripta Materialia
Volume44
Issue number8-9
DOIs
Publication statusPublished - 2001 May 18
Externally publishedYes

Keywords

  • Annealing
  • Melt spinning
  • Metallic glasses
  • Transmission electron microscopy

ASJC Scopus subject areas

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

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