Microstructure and Properties of AlCrFeCoNiCux High-Entropy Alloys

Abstract

The peculiarities of the structure formation of alloys of the system AlCrFeCoNiCuх (where x = 0, 0.5, 1, 2, and 3 moles) were studied. Durometric studies of alloys of this system were carried out. Established that an alloy AlCrFeCoNiCu0.5 has the highest microhardness (6.1 GPa). Heat resistance tests showed that AlCrFeCoNi and AlCrFeCoNiCu have the highest heat resistance. The connection between the scale composition after the test and the mechanism of oxidation of this alloys revealed.

Keywords

• high-entropy alloys
• microstructure
• microhardness
• heat resistance