A MATHEMATICAL EXPRESSION OF CRYSTAL GROWTTH RATE DURING CRYSTALLIZATION OF AMORPHOUS ALLOYS

Acta Metall Sin

1991, Vol. 27

Issue (4): 105-110 DOI:

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A MATHEMATICAL EXPRESSION OF CRYSTAL GROWTTH RATE DURING CRYSTALLIZATION OF AMORPHOUS ALLOYS

LU Ke;WANG Jingtang National Laboratory of RSA; Institute of Metal Research; Academia Sinica; Shenyang

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LU Ke;WANG Jingtang National Laboratory of RSA; Institute of Metal Research; Academia Sinica; Shenyang. A MATHEMATICAL EXPRESSION OF CRYSTAL GROWTTH RATE DURING CRYSTALLIZATION OF AMORPHOUS ALLOYS. Acta Metall Sin, 1991, 27(4): 105-110.

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Abstract A mathematical expression of the crystal growth rate during crystalli-zation of the amorphous alloys was derived from the micromechanism of crystalli-zation newly developed by the authors. Thus, the satisfactory explanation of theexperimental results obtained by Nunogaki et al., Heimendahl et al. and the authorsmight be found. It seems also to be modelled with the expression for the crystalgrowth and the crystal size influenced by time during the crystallization of amor-phous Ni-P alloy foil at in situ heating. Based on the expression, the factors influ-encing the crystal growth rate, such as temperature, time and microstructure of am-orphous alloys, have been discussed.

Key words: amorphous alloy crystal growth rate ordered cluster shearing deposition atomic diffusion

Received: 18 April 1991

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1991/V27/I4/105

1 Scott M G. In: Luborsky F E ed, Amorphous Metallic Alloys, London: Butterworths, 1983; 144
2 Turnbull D, Solid St Phys, 1956;3
3 Nunogaki K, Katao Y, and Kiritani M. In: Masumoto T, Suzuki K eds., Prod 4th Int Conf on Rapidly Quenched Metals, 1981;509
4 卢柯,王景唐.金属学报,1991;27:B31
5 卢柯,王景唐.金属学报,1991;27:B38
6 卢柯,中国科学院金属研究所博士学位论文,(1989)
7 Heimendahl M V, Kuglstatter G. J Mater Sci, 1981; 16: 2405

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