Precipitation of Zr2Cu stable crystalline phase from Zr 70Cu27.5Rh2.5 amorphous alloy

David Cushman, Junji Saida, Chunfei Li

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

Abstract

The crystallization process of Zr70Cu27.5Rh 2.5 metallic glass was studied with Transmission Electron Microscopy (TEM). In contrast to previous studies where the precipitation of metastable icosahedral quasicrystalline (IQC) particles is of the interest, we designed the present work to focus on the nucleation process of the stable Zr2Cu crystalline phase. It has been found that the alloy consists of IQC particles distributed in amorphous matrix prior to the precipitation of the Zr 2Cu stable crystalline phase and Zr2Cu nucleates from the amorphous matrix. The encounter of the IQC phase with Zr2Cu transforms the former into the latter so quickly that no interface between them was found in the present experiment. These insights provide the basis for a discussion of the stability of metallic glasses and the IQC particles.

Original languageEnglish
Title of host publicationThermodynamics and Kinetics of Phase Transformations in Inorganic Materials
Pages104-109
Number of pages6
Publication statusPublished - 2006 Dec 1
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: 2006 Nov 272006 Nov 29

Publication series

NameMaterials Research Society Symposium Proceedings
Volume979
ISSN (Print)0272-9172

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period06/11/2706/11/29

ASJC Scopus subject areas

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

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