Thermophysical properties of multicomponent liquid alloys

本文综述了液态多元合金热物性测量领域的最新成果。这项工作的中心问题是，这些性能与材料组成的关系能否在液态下得到澄清，因为绝大多数技术上有意义的合金都是多组分的。为了对液体材料的宏观行为有一个详细的了解，对其热物理性质的精确了解是一个基本前提。因此，无容器测量方法，如电磁或静电悬浮的作用被特别强调。通过密度、表面张力和粘度的例子，研究混合行为，从单原子体系逐步移动到三元体系。因此，研究是否可以在相似的体系中识别共同的趋势，以及多元合金的性质是否可以与其子系统的性质相关。对已建立的模型进行了测试和验证。财产之间的关系，如斯托克斯-爱因斯坦关系，被回顾和批判性地讨论。最后给出了应用实例。这本书包含了一个有用的数据收集，致力于从业者，工艺工程师和专门的材料模拟器。本工作有助于加深对液态及其热物理性质的了解，并有助于改进熔体的计算机辅助材料设计。

This present work reviews recent achievements in the field of thermophysical property measurements of liquid multicomponent alloys. The work is centered on the question of whether the dependence of these properties on material composition can be clarified in the liquid state, as the vast majority of technically interesting alloys are multicomponent. In order to obtain a detailed understanding of the macroscopic behavior of liquid materials, a precise knowledge of their thermophysical properties is a fundamental prerequisite. The role of containerless measurement methods, such as electromagnetic or electrostatic levitation, are therefore, particularly emphasized.Through examples of density, surface tension and viscosity, mixing behavior is studied by moving stepwise from mono-atomic-, via binary- to ternary systems. It is hereby investigated whether common trends can be identified among similar systems and if the properties of a multicomponent alloy can be related to those of its subsystems. Established models are tested and validated. Inter-property relations, such as the Stokes-Einstein-relation, are reviewed and critically discussed. Finally, application examples are described. The book contains a useful data collection dedicated to the practitioner, the process engineer and devoted materials simulator. The present work contributes to a deeper understanding of the liquid phase and its thermophysical properties and to an improvement of Computer Aided Materials Design from the Melt.