Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 5    No. 2    June 1995

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CALCULATING MODELS OF MASS ACTION CONCENTRATIONS OF BINARY METALLIC MELTS INVOLVING SOLID SOLUTIONS
Zhang Jian

Department of Metallurgy; University of Science and Technology Beijing; Beijing 100083

Abstract:Based on the appearance of minima of mixing free energy and maxima (or minima)of excess free energy. formation of compound or short-range order in the solid state, exhibition of miscibility gap,two phase region or eutectoid in the solid(or liquid) state as well as symmetrical or unsymmetrical deviations of activity relative to Raoultian behavior, calculating models of mass action concentrations for Si-Ge, Ni-Pb, Fe-Cr, Fe-Cu, Sb-Sn and Ag-Au as well as Ni-Pt, Cr-V and Ag-pb metallic melts have been formulated. Good agreement between calculated and measured values shows that the calculating models reflect the structural characteristics of given metallic melts.

 

Key words: activity short-range order coexistence theory mass action concentration

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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