论文标题

液态二元合金中不混溶性和隔离的微观起源

Microscopic origin of immiscibility and segregation in liquid binary alloys

论文作者

Bhuiyan, G M

论文摘要

在过去的八年中,物理学家,冶金学家和化学家在研究中,微观二元合金的不混溶性和隔离性能在研究中获得了新的科学和技术利益。尤其是,从外部相互作用的角度来理解基本机制,以及某些金属合金中的隔离以及为什么在某些由温度和压力指定的热力学状态下进行分离。本评论介绍了由金属,统计力学和扰动方法组合的不同作者或群体在种族隔离领域进行的理论和实验著作的概述。本综述中的主要注意力集中在静态效果上,例如混合能量的效果,混合的熵,混合熵和理解合金从微观理论方法中隔离的临界行为。从动态效应中研究隔离性能,例如剪切粘度和扩散系数的效果,才刚刚可用。但是,我们仅限制了此综述,仅就静态效应及其对不同合金的影响变化。

Microscopic description in the study of immiscibility and segregating properties of liquid metallic binary alloys has gained a renewed scientific and technological interests during the last eight years for the physicists, metallurgists and chemists. Especially, in understanding the basic mechanisms, from the point of interionic interaction, and how and why segregation in some metallic alloys takes place at and under certain thermodynamic state specified by temperature and pressure. An overview of the theoretical and experimental works done by different authors or groups in the area of segregation combining electronic theory of metals, statistical mechanics and the perturbative approach is presented in this review. Main attention in this review is focused on the static effects such as the effects of energy of mixing, enthalpy of mixing, entropy of mixing and understanding the critical behaviour of segregation of alloys from the microscopic theoretical approach. Investigation of segregating properties from the dynamic effects such as from the effects of shear viscosity and diffusion coefficient is just becoming available. However, we have restricted this review only on static effects and their variation of impacts on different alloys.

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