Nanocrystallization kinetics of Ni-based bulk amorphous alloy

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

研究成果: Article査読

53 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1197-1203
ページ数7
ジャーナルIntermetallics
12
10-11 SPEC. ISS.
DOI
出版ステータスPublished - 2004 10

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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