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ye gu jie mian zai fei ping heng ning gu zhong de xing wei
Pages: 64-74
Year: Issue:  3
Journal: Materials Science and Technology

Keyword:  液固界面凝固过程溶质分配系数非平衡结晶生长速率生长条件凝固体系平衡相图过渡过程溶质再分配;
Abstract: This paper shows that the S/L interface is an area deviating from equilibrium in general solidification,and that the S/L interface of a solidification system in a nonequilibrium solidification process accompanied by mass,thermal and momentum transports is a noneqilibrium area with the special characteristic similar to those of other nonequilibrium systems. It also shows that the state of the S/L interface is a function of the state of molten metal, the crystal growth conditions and other thermodynamic and kinetic factors. And according to this investigation described above, a new approach to controlling the behaviours of the S/L interface as well as the solidification process of an alloy system can be put into practice satisfactorily.
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