Study on Viscosity of Zr-Cu Alloys Based on Viscosity Measurement and Hirai Mode
In this paper, the viscosity of molten Zr50Cu50 alloy was measured by using NaF-CaF2 covering slag protection combining rotating cylinder method under non-vacuum melting condition for the first time. The curve of viscosity and temperature was acquired stably in the temperature range from 1373K to the liquidus temperature (1208K). According the Arrhenius equation form, the viscosity-temperature relation of molten Zr50Cu50 alloy can be fit as the following equation: η=1.90×10-23exp530398/RT(1208K<T<1373K) The viscosity of molten Zr50Cu50 alloy can be calculated by the above equation in the range of 1208 to 1373K. The viscosity values of molten Zr50Cu50 alloy calculated by Hirai model are relatively weak, so the improved Hirai model was corrected by the measured viscosity data. The viscosities of molten Zr-Cu alloys can be expressed by the following improved Hirai model: η=AexpB/RT A=9.01×10-5p2/3T1/2mM-1/6/expB/RTmAexpB/RT B=138346T1.27M The viscosities of typical molten Zr-Cu alloys were calculated by the above improved model. The results showed that the viscosities of Zr-Cu alloys are larger at the respective liquidus temperature than weakly glass-forming ability alloy. The fundamental data were provided for researching the relationship between viscosities of molten Zr -Cu alloys and GFA.
Jingsong Wang Shuyou Huang Lijun Cao Haoyan Sun Jinghua Wang Qingguo Xue
Key Laboratory of Ecological and Recycle Metallurgy, School of Metallurgical and Ecological Engineering, University of Sciences and Technology Beijing, Beijing, China
国际会议
桂林
英文
1-6
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）