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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
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Volume 8 Issue 3
Jun.  2017
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DUAN Shengchao, GUO Hanjie, GUO Jing, LU Hao, SHI Xiao, YANG Wensheng, LIU Shuai, YU Mengxi. Thermodynamic calculating of binary alloy melts based on atom-molecule theory[J]. Nonferrous Metals Science and Engineering, 2017, 8(3): 7-15. DOI: 10.13264/j.cnki.ysjskx.2017.03.002
Citation: DUAN Shengchao, GUO Hanjie, GUO Jing, LU Hao, SHI Xiao, YANG Wensheng, LIU Shuai, YU Mengxi. Thermodynamic calculating of binary alloy melts based on atom-molecule theory[J]. Nonferrous Metals Science and Engineering, 2017, 8(3): 7-15. DOI: 10.13264/j.cnki.ysjskx.2017.03.002
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Thermodynamic calculating of binary alloy melts based on atom-molecule theory

  • School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials, Beijing 100083, China

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  • Received Date: November 17, 2016
  • Published Date: June 29, 2017
    Graphical Abstract
    • Abstract
  • The activities in Bi-Pb, Bi-Sn, Cd-Pb, Pb-Sn binary alloy system were calculated by Miedema model, molecular interaction volume model (MIVM), non-random two-liquid (NRTL) equation and thermodynamic modeling software FactSage respectively, and compared with measured value. The experimental results show that the Miedema model, MIVM model, NRTL model, Wilson model are not applicable to the above-mentioned four binary alloy system. But the measured activities has good corresponding with the calculated activities by thermodynamic modeling software FactSage, and the activities are calculated by using FactSage at different temperature. Meanwhile, a thermodynamic model for calculating the mass action concentration of structural units in Bi-Pb binary alloy system based on the atom-molecule coexistence theory has been developed, and the expression of standard Gibbs free energy change of reaction for forming intermetallic molecules as BiPb was put forward.
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    • References (20)
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