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Performance analysis of FeCoCr1.5NiAl high-entropy alloy coating on H13 steel by laser cladding

For a better performance of the high wear resistance of H13 die steel, FeCoCr1.5NiAl High Entropy Alloy coating was prepared on H13 by laser cladding. The results show that the HEA coating has good metallurgical bonding with matrix. The microstructure of coating is columnar crystal and equiaxed crystal. The coating has the single-phase body-centered cubic and face-centered cubic. The microhardness of this coating is up to 800HV, about 4 times that of the matrix. The friction coefficient of coating is smaller than matrix and the wear volume of coating is decreased approximately 61.02% compared with matrix. The main wear forms of coating is abrasive wear and wear forms of matrix is abrasive wear and fatigue wear.