Thermodynamic assessment of the Zn-Y and Al-Zn-Y systems

Thermodynamic assessment of the Zn-Y and Al-Zn-Y systems
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Zn-Y 和 Al-Zn-Y 系统的热力学评估

DOI:
10.1016/j.jallcom.2006.11.029
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发表时间:
2008-03
影响因子:
6.2
通讯作者:
--
中科院分区:
材料科学2区
文献类型:
--
作者:

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本文用相图计算法(CALPHAD)计算了Zn-Y二元系的相图,并结合相平衡和热力学性质的实验数据进行了计算。液相、bcc相和hcp相的吉布斯自由能用Redlich-Kister方程的亚规则溶液模型描述,YZn、YZn 2、YZn 3、Y3 Zn 11、Y13 Zn 58、YZn 5、Y2 Zn 17和YZn 12等8种化学计量化合物的吉布斯自由能用亚晶格模型描述。结合实验数据和三个二元系的热力学参数,对Al-Zn-Y三元系的热力学参数进行了估算。计算的相平衡和热力学性质与实验数据符合得很好。
The phase diagram in the Zn–Y binary system has been evaluated by using the CALPHAD (Calculation of Phase Diagrams) method with the experimental data of the phase equilibria and thermodynamic properties. The Gibbs free energies of the liquid, bcc and hcp phases were described by the subregular solution model with the Redlich–Kister equation, and those of the eight stoichiometric compounds of the YZn, YZn2, YZn3, Y3Zn11, Y13Zn58, YZn5, Y2Zn17and YZn12were described by the sublattice model. The thermodynamic parameters in the Al–Zn–Y system were also evaluated by combining the experimental data with the parameters in three binary systems. The calculated phase equilibria and thermodynamic properties are in good agreement with the experimental data.
DOI: 10.1007/bf02644469
发表时间: 1976-02
期刊: Metallurgical Transactions A
影响因子: --
作者:
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DOI: 10.1016/0364-5916(85)90021-5
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