The scope of the present study is focused on high-entropy alloy (HEA), a new type of alloy system-reinforced aluminium metal matrix composite (AMMC) development. The novel metal–metal composite is fabricated through powder metallurgy by reinforcing prepared AlCoCrCuFe HEA particles with aluminium. Headed for identifying the effect of HEA on aluminium, weight percentage of HEA is varied from 0 to 15% with an equal interval of 3%. By using X-ray diffractometer, phase constituents of HEA and Al base material are analysed besides the fact that the scanning electron microscope is utilized for morphology analysis of HEA particles and AMMC. Density of the aluminium increases gradually with the increase in HEA content due to higher density of reinforcements, and maximum micro-hardness of 71.3 HV is attained for 15% HEA reinforcement addition which is 37.6 HV for unreinforced aluminium. Among the various predictive methodologies, the density and hardness of Al–AlCoCrCuFe metal–metal composite are found close to the values predicted by the Reuss and Voigt model, respectively. Decrease in wear rate was found for aluminium MMC with the increase in HEA reinforcement addition.

中文翻译：

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金属-高熵合金复合材料的制备与表征

本研究的范围集中于高熵合金（HEA），这是一种新型的合金体系增强的铝金属基复合材料（AMMC）。新型金属-金属复合材料是通过粉末冶金通过用铝增强制备的AlCoCrCuFe HEA颗粒而制成的。为了确定HEA对铝的影响，HEA的重量百分比从0％到15％不等，间隔为3％。通过使用X射线衍射仪，除了利用扫描电子显微镜对HEA颗粒和AMMC进行形态分析外，还分析了HEA和Al基材料的相成分。铝的密度会随着HEA含量的增加而逐渐增加，这是由于增强剂的密度更高，并且添加15％的HEA增强剂（达到37）可获得71.3 HV的最大显微硬度。6 HV用于非增强铝。在各种预测方法中，发现Al-AlCoCrCuFe金属-金属复合材料的密度和硬度分别接近Reuss和Voigt模型所预测的值。随着HEA增强剂添加量的增加，发现铝MMC的磨损率降低。