中国物理B ›› 1995, Vol. 4 ›› Issue (2): 113-117.doi: 10.1088/1004-423X/4/2/005

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ISOTHERMAL CRYSTALLIZATION KINETICS OF BALL-MILLED AMORPHOUS Al-Ni-Zr ALLOY

高文莉1, 都有为1, 王开阳2, 全明秀2, 王景唐2   

  1. (1)Department of Physics, Nanjing University, Nanjing 210093, China; (2)State Key Laboratory for Rapidly Solidified Nonequilibrium Alloys, Institute of Metal Research, Academia Sinica, Shenyang 110015, China
  • 收稿日期:1994-01-11 出版日期:1995-02-20 发布日期:1995-02-20

ISOTHERMAL CRYSTALLIZATION KINETICS OF BALL-MILLED AMORPHOUS Al-Ni-Zr ALLOY

GAO WEN-LI (高文莉)a, DU YOU-WEI (都有为)a, WANG KAI-YANG (王开阳)b, QUAN MING-XIU (全明秀)b, WANG JING-TANG (王景唐)b   

  1. a Department of Physics, Nanjing University, Nanjing 210093, China; b State Key Laboratory for Rapidly Solidified Nonequilibrium Alloys, Institute of Metal Research, Academia Sinica, Shenyang 110015, China
  • Received:1994-01-11 Online:1995-02-20 Published:1995-02-20

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摘要： The isothermal crystallization kinetics of amorphous Al-Ni-Zr alloy produced by mechanical alloying was studied by means of differential scanning calorimetry. Accordiag to Arrhenius equation, the apparent activation energy was calculated. The isothermal crystal-lization kinetics follows Johnson-Mehl-Avrami equation with n=2.00 within 0.15

Abstract: The isothermal crystallization kinetics of amorphous Al-Ni-Zr alloy produced by mechanical alloying was studied by means of differential scanning calorimetry. Accordiag to Arrhenius equation, the apparent activation energy was calculated. The isothermal crystal-lization kinetics follows Johnson-Mehl-Avrami equation with n=2.00 within 0.15 < x < 0.85,  x being the volume fraction crystallized. For understanding the isothermal crystalization process in detail, the concepts of local Avrami exponent and local activation energy have been introduced into this Al-Ni-Zr system.

中图分类号:  (Amorphous semiconductors, metals, and alloys)

  • 61.43.Dq
07.20.Fw (Calorimeters) 81.30.Hd (Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder) 81.20.Ev (Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation)