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A phase-field model with two-component order parameter for spontaneous crystallization in a melt of pure metal

机译:具有两成分阶数参数的相场模型,用于在纯金属熔体中自发结晶

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摘要

A phase-field model with the two-component order parameter is proposed for describing the crystallization of a pure metal. The model is constructed on the basis of the Ginzburg-Landau theory of phase transitions using the principle of the positivity of entropy production in an open weakly nonequilibrium system. This makes it possible to use the proposed model for describing nonisothermal processes. A number of one-dimensional and two-dimensional problems associated with the simulation of a solidified structure under different temperature conditions are solved. (C) 2005 Pleiades Publishing, Inc.
机译:提出了具有两组分阶数参数的相场模型,用于描述纯金属的结晶。该模型基于Ginzburg-Landau相变理论,使用开放弱弱非平衡系统中熵产生的正性原理构建。这使得可以使用提出的模型来描述非等温过程。解决了在不同温度条件下模拟凝固结构的许多一维和二维问题。 (C)2005年Pleiades Publishing,Inc.

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