凝固定量相场模型的研究进展

IF 3.1 2区 材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING Journal of Iron and Steel Research(International) Pub Date : 2017-09-01 DOI:10.1016/S1006-706X(17)30129-2
Xiang-lei Dong , Hui Xing , Kang-rong Weng , Hong-liang Zhao
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引用次数: 18

摘要

综述了纯金属和合金凝固过程的定量相场模拟方法。定量相场方程在扩散薄界面极限下处理,使得准平衡模拟中界面动力学与模型参数之间的定量联系成为可能。结果表明,在大规模模拟中,定量建模更有效地处理微观结构模式的形成,而不会产生虚假的动力学效应。综述了定量相场模型在模拟不同凝固条件下枝晶结构、共晶薄片、海藻形态和晶界等微观组织形成方面的进展,旨在指导寻找定量相场模拟的新应用前景。
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Current development in quantitative phase-field modeling of solidification

The quantitative phase-field simulations were reviewed on the processes of solidification of pure metals and alloys. The quantitative phase-field equations were treated in a diffuse thin-interface limit, which enabled the quantitative links between interface dynamics and model parameters in the quasi-equilibrium simulations. As a result, the quantitative modeling is more effective in dealing with microstructural pattern formation in the large scale simulations without any spurious kinetic effects. The development of the quantitative phase-field models in modeling the formation of microstructures such as dendritic structures, eutectic lamellas, seaweed morphologies, and grain boundaries in different solidified conditions was also reviewed with the purpose of guiding to find the new prospect of applications in the quantitative phase-field simulations.

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来源期刊
CiteScore
4.30
自引率
0.00%
发文量
2879
审稿时长
3.0 months
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