Crystallization of a Al-4Ni-6Ce glass and its influence on mechanical properties

M. A. Muñoz-Morris, S. Suriñach, M. Gich, M. D. Baró, D. G. Morris

Research output: Contribution to journalArticleResearchpeer-review

33 Citations (Scopus)

Abstract

The crystallization behaviour of a rapidly quenched, amorphous Al-4Ni-6Ce material has been examined during low temperature annealing, and shown to commence by the nucleation of nanoscale Al crystals, which stop growing once they reach a size of about 10 nm. In a subsequent, second phase of crystallization the dendritic Al crystals grow rapidly with the formation of a crystal-glass eutectic-like mixture. The nanoscale Al crystals lead to some hardening of the glass, but do not modify the good ductility of the material. Subsequent hardening and embrittlement of the glass-nanocrystal composite may depend on slight changes of the extent of crystallization or instead on changes occurring in the glass itself. © 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)1067-1077
JournalActa Materialia
Volume51
DOIs
Publication statusPublished - 25 Feb 2003

Keywords

  • Aluminium
  • Crystallization
  • Embrittlement
  • Hardening
  • Metallic glass

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