| Composition Range of Amorphous Mg-Ni-Y Alloys |
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| 作者姓名： | 陈红梅 钟夏平 欧阳义芳 |
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| 作者单位： | [1]DepartmentofPhysics,GuangxiUniversity,Nanning530004,China [2]GuilinInstituteofTechnology,Guilin541004,China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina ( 5 0 2 610 0 1，10 164 0 0 1)，theKeyProjectofChinese
MinistryofEducation ( 2 0 0 0 ( 15 6) )andGuangxiScienceFoundation ( 0 2 2 90 0 7) |
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| 摘 要： | Based on the thermodynamic point of view, a method for predication of the composition range of amorphous ter-nary alloys was proposed. The composition range of amorphous ternary alloys is determined by the comparison of the excess free energy of the amorphous alloy and the free energy of competing crystalline states. The free energy is extrapolated from the data of three binary alloys by using Toop‘s model. The method was applied to predict the composition range of amor-phous Mg-Ni-Y alloys. The theoretical results are in good agreement with the available experimental results. It indicates that the present method can be used to predict the composition range for amorphous ternary alloys.
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| 关 键 词： | 热力学 无组织合金 镁镍钇合金 稀土三重合金 |
Composition Range of Amorphous Mg-Ni-Y Alloys |
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| Chen Hongmei ,Zhong Xiaping ,Ouyang Yifang.Composition Range of Amorphous Mg-Ni-Y Alloys[J].Journal of Rare Earths,2003,21(5):567-570. |
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| Authors: | Chen Hongmei Zhong Xiaping Ouyang Yifang |
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| Affiliation: | Chen Hongmei 1*,Zhong Xiaping 2,Ouyang Yifang 1 |
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| Abstract: | Based on the thermodynamic point of view, a method for predication of the composition range of amorphous ternary alloys was proposed. The composition range of amorphous ternary alloys is determined by the comparison of the excess free energy of the amorphous alloy and the free energy of competing crystalline states. The free energy is extrapolated from the data of three binary alloys by using Toop′s model. The method was applied to predict the composition range of amorphous Mg-Ni-Y alloys. The theoretical results are in good agreement with the available experimental results. It indicates that the present method can be used to predict the composition range for amorphous ternary alloys. |
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| Keywords: | metal materials thermodynamics amorphous miedema theory rare earth ternary alloy rare earths |
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