Crystallization kinetics in a Ni24Zr76 amorphous alloy

G. Ghosh*, F. R. Chen

*Corresponding author for this work

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

Abstract

Isothermal crystallization kinetics of Ni24Zr76 amorphous alloy has been studied by differential scanning calorimetry (DSC). Theoretically estimated transient times are found to be consistent with the experimentally observed incubation periods. The crystallization kinetics has been analyzed in terms of Kolmogorov-Johnson-Mehl-Avrami (KJMA) model and significant departure from the linear KJMA behavior was observed. Such non-linearity is due to the surface-induced crystallization, anisotropic growth of the crystals, impingement effects and variation of the nucleation rate during crystallization etc. By applying high-resolution electron microscopy (HREM), it has been shown that the nucleation and growth of the crystals do not take place at a constant state of disorder.

Original languageEnglish (US)
Title of host publicationCrystallization and Related Phenomena in Amorphous Materials
EditorsMatthew Libera, Tony E. Haynes, Peggy Cebe, James E. Dickinson Jr.
PublisherPubl by Materials Research Society
Pages289-294
Number of pages6
Volume321
ISBN (Print)1558992200
StatePublished - Jan 1 1994
EventProceedings of the 1993 Fall Meeting of the Materials Research Society - Boston, MA, USA
Duration: Nov 29 1993Dec 2 1993

Other

OtherProceedings of the 1993 Fall Meeting of the Materials Research Society
CityBoston, MA, USA
Period11/29/9312/2/93

ASJC Scopus subject areas

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

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