Surface Tension Calculation of Undercooled Alloys  

作　　者：Zhiyu Qiao, Lijun Yan, Zhanmin Cao, Guirong Liu (Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083, China) 

出　　处：《Rare Metals》2001年第1期58-61,共4页稀有金属（英文版）

基　　金：the National Natural Science Foundation of China (No. 50071009, 59674027)and the National Doctorate Fund of State Education Mi

摘　　要：Based on the Butler equation and extrapolated thermodynamic data of undercooled alloys from those of liquid stable alloys, a method for surface tension calculation of undercooled alloys is proposed. The surface tensions of liquid stable and undercooled Ni-Cu (x(Ni)=0.42) and Ni-Fe (x(Ni)=0.3 and 0.7) alloys are calculated using STCBE (Surface Tension Calculation based on Butler Equation) program. The agreement between calculated values and experimental data is good enough, and the temperature dependence of the surface tension can be reasonable down to 150-200 K under the liquid temperature of the alloys.Based on the Butler equation and extrapolated thermodynamic data of undercooled alloys from those of liquid stable alloys, a method for surface tension calculation of undercooled alloys is proposed. The surface tensions of liquid stable and undercooled Ni-Cu (x(Ni)=0.42) and Ni-Fe (x(Ni)=0.3 and 0.7) alloys are calculated using STCBE (Surface Tension Calculation based on Butler Equation) program. The agreement between calculated values and experimental data is good enough, and the temperature dependence of the surface tension can be reasonable down to 150-200 K under the liquid temperature of the alloys.

关 键 词：undercooled alloy surface tension Butler equation 

分 类 号：TG131[一般工业技术—材料科学与工程]