Influence of aluminum concentration on the properties of NiCrCoFeMnAl high entropy alloy

Designing of high-entropy alloys (HEAs) is one of the most important directions of developing modern materials science. Currently, the full range of new developed HEA materials and their possible properties are still rarely revealed. Obtaining such multicomponent alloys is a complex scientific and technological task, therefore, to obtain an alloy with certain properties, designing the right elements and their concentrations and predicting their reliable properties are of great critical. In this paper, the influence of aluminum concentration on the phase composition and properties of Nickel alloys treated at a temperature of 600 ° C, the results are predicted using computer modeling of material properties. The experiments showed a significant effect of Al concentration on the phase composition of the material, density, young's modulus, electrical conductivity, thermal conductivity, and molar volume.高熵合金（high-entropy alloys，HEAs）的设计是现代材料科学发展的重要方向之一。当前，全新开发的高熵合金材料及其潜在性能的全貌仍鲜有披露。制备此类多组元合金是一项复杂的科技课题，因此，若要获得具备特定性能的合金，合理设计组元种类与浓度比例，并可靠预测其性能具有至关重要的意义。本文研究了铝元素浓度对经600℃热处理的镍合金的相组成与性能的影响，并通过材料性能计算机建模对结果进行了预测。实验结果表明，铝元素浓度对材料的相组成、密度、杨氏模量（Young's modulus）、导电性、导热性以及摩尔体积均具有显著影响。