材料期刊网

多主元高熵合金AlTiFeNiCuCrx微观结构和力学性能

陈敏 , 刘源 , 李言祥 , 陈祥

金属学报

本文研究了不同Cr含量的AlTiFeNiCuCrx多主元高熵合金的微观组织和力学性能特点。结果表明，Cr含量的增加使合金的凝固模式从亚共晶向过共晶凝固转移，铸态组织由一先析出枝晶相和枝晶间的菊花状共晶组织组成。合金仅由简单的面心立方结构(富Cr相)和体心立方结构(贫Cr相)两相组成。Cr含量的增加对合金硬度的提高较小。该合金为室温脆性材料，但在1073K高温时具有很好的塑性变形能力和较高的强度，当xCr=1-1.5左右时，合金具有最优的压缩强度和塑性组合。

关键词: 多主元合金 , High-entropy alloy , Microstructure , Properties

Thermodynamic analysis of the simple microstructure of  AlCrFeNiCu high-entropy alloy with multi-principal elements

Anmin LI , Xiyan ZHANG

金属学报(英文版) doi:10.1016/S1006-7191(08)60092-7

AlCrFeNiCu high-entropy alloy (THA) was synthesized by the arc melting and casting method. The alloy exhibits simple FCC and BCC solid solution phases rather than intermetallic compounds. The reason is that the Gibbs free energy of mixing of the equimolar AlCrFeNiCu alloy is smaller than that of inter-metallic compounds by calculation according to the Miedema model.

关键词: Multi-principal elements alloy , null , null , null

Microstructure and properties of Al0.3CrFe1.5MnNi0.5Tix and Al0.3CrFe1.5MnNi0.5Six high-entropy alloys

稀有金属 doi:10.1007/s12598-014-0224-4

关键词:

Optimizing Mechanical Properties of A1CoCrFeNiTix High-Entropy Alloys by Tailoring Microstructures

金属学报(英文版) doi:10.1007/s40195-012-0174-5

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