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EFFECT OF PRE-ANNEALING ON CRYSTALLIZATION KINETICS OF Cu-Ti GLASS |
MIAO Weifang;WANG Jingtang;LI Shuling Institute of Metal Research; Academia Sinica; Shenyang research assistant |
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Cite this article:
MIAO Weifang;WANG Jingtang;LI Shuling Institute of Metal Research; Academia Sinica; Shenyang research assistant. EFFECT OF PRE-ANNEALING ON CRYSTALLIZATION KINETICS OF Cu-Ti GLASS. Acta Metall Sin, 1990, 26(4): 113-118.
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Abstract The crystallizatiin kinetics of the Cu_(40)Ti_(60) glasses, either as-quenchedor pre-annealed, has been studied by differential scanning calorimetery. The crystal-lization temperature, activation energy for crystallization and Avrami exponent werefound to be lowered by pre-annealing. Both activation energies of nucleation andgrowth of the amorphous Cu_(40)Ti_(60) alloys were obtained on the basis of experimen-tal results and theoretical analysis.
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Received: 18 April 1990
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1 Scott M G. In: Luborsky F E ed., Amorphous Metallic Alloys, London: Butterworths, 1983: 144--168 2 Greer A L. In: Steeb S, Warlimont H eds., Rapidly Quenched Metals, Vol. Ⅰ, Amsterdam: North-Holland, 1985: 215 3 Greer A L. Acta Metall, 1982; 30: 171 4 Lu K, Wang J T. J Mater Sci, 1988; 23: 3001 5 Vogel H, Von Heimendahl M. Mater Sci Eng, 1983; 57: 171 6 Kissinger H E. Anal Chem, 1957; 29: 1702 7 Christian J W. The Theory of Transformation in Metals and Alloys, Oxford: Pergamon, 1965: 16 8 Ranganathan S, Von Heimendahl M. J Mater Sci, 1981; 16: 2401 9 Dey G K, Banerjee S. Mater Sci Eng, 1985; 76: 127 |
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