Nanocrystallization kinetics of Ni-based bulk amorphous alloy

F. X. Qin, H. F. Zhang, B. Z. Ding, Z. Q. Hu

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

The bulk amorphous alloy Ni45Ti23Zr 15Si5Pd12 has been prepared by copper mold casting. The crystallization kinetics of the alloy has been investigated using differential scanning calorimetry by means of continuous heating and isothermal annealing, and the products of crystallization have been analyzed by transmission electron microscopy and X-ray diffraction. The isothermal activation energy obtained from Arrhenius equation increases in the process of crystallization transformation. The details of nucleation and growth during the isothermal crystallization are expatiated in terms of local Avrami exponent and local activation energy. Meanwhile, the origins of nanocrystal formation during the annealing process have also been discussed.

Original languageEnglish
Pages (from-to)1197-1203
Number of pages7
JournalIntermetallics
Volume12
Issue number10-11 SPEC. ISS.
DOIs
Publication statusPublished - 2004 Oct 1

Keywords

  • B. Glasses, metallic
  • B. Thermal stability
  • C. Rapid solidification processing

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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  • Cite this

    Qin, F. X., Zhang, H. F., Ding, B. Z., & Hu, Z. Q. (2004). Nanocrystallization kinetics of Ni-based bulk amorphous alloy. Intermetallics, 12(10-11 SPEC. ISS.), 1197-1203. https://doi.org/10.1016/j.intermet.2004.04.015