Powder Metallurgy Processing and Characterization of the χ Phase Containing Multicomponent Al-Cr-Fe-Mn-Mo Alloy

High entropy alloys present many promising properties, such as high hardness or thermal stability, and can be candidates for applications. Powder metallurgy techniques enable the production of bulk with fine microstructures. This study aimed to investigate powder preparation, i.e., mechanical alloying sintering, non-equiatomic alloy from Al-Cr-Fe-Mn-Mo system. The structural microstructural investigations were performed on powders sample. indentation was carried out mechanically alloyed consists two bcc phases, one which is significantly predominant. annealed sample sintered at 950 °C 1 h consist a predominantly phase (71 ± 2 vol.%), an intermetallic χ (26 small volume fraction multielement carbides—M6C M23C6. presence carbides results carbon contamination balls vial during graphite die sintering. density 6.71 g/cm3 (98.4% relative density). presents very 948 34 HV1N Young’s modulus 245 8 GPa. showed possibility preparing ultra-hard multicomponent material reinforced by phase. research this system presented new knowledge formation in systems. Moreover, strengthening solid solution matrix via hard phases could interesting industrial