A rheological model of metal alloys in a semi-solid state

被引：0
|
作者：
Kotynia, M [1 ]
Petera, J
Koke, J
机构：
[1] Tech Univ Lodz, Wydzial Inzynierii Procesowej & Ochrony Srodowisk, PL-90924 Lodz, Poland
[2] Rhein Westfal TH Aachen, Inst Verfahrenstech, D-52056 Aachen, Germany
来源：
INZYNIERIA CHEMICZNA I PROCESOWA | 2001年 / 22卷 / 02期
关键词：
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A rheological model of metal alloy in the semi-solid state used as a raw material in the thixoforming process has been developed. The theoretical side of this casting method and the mathematical model of the material in this state verified by available experimental data were described. This model enables prediction of main phenomena that are encountered during the process of casting and forming of semisolid metal alloys. This includes in particular description of the phase segregation during the flow, thixotropic rheological phenomena with the yield stress, viscosity dependence on the shear stress, solid phase fraction and its agglomeration state. The comparison of the modelling results with experimental data proves that the model sufficiently well describes the thixoforming process.
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页码：323 / 343
页数：21
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