Abstract
Fe50Mn30Co10Cr10 high-entropy alloys were prepared by laser cladding technology. The microstructure and phase structure of the cladding layer were analyzed. The effects of laser cladding parameters on mechanical property of the cladding layer were studied. The results show that, the Fe50Mn30Co10Cr10 high entropy alloy cladding layer is composed of FCC structure and HCP structure, BCC structure was also observed in the layer. There are fine equiaxed grains at the top of the cladding layer while columnar grains near the fusion zone. The maximum hardness of cladding layer is 292.9 HV under the laser cladding parameter of 200 W and 5 mm/s. The maximum tensile strength of the substrate with cladding layer is 692.4 MPa, and the maximum elongation is 21.3%. The fracture mode of cladding layer is ductile fracture. Adhesive wear and abrasive wear are both observed at surface of the cladding layer after wear testing. The best wear resistance is obtained at cladding parameter of 200 W, 7 mm/s with the weight loss of 0.0215g and friction coefficient of 0.6294. The results provide a certain support for the preparation process and microstructure, properties analysis of Fe50Mn30Co10Cr10 high entropy alloy.
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This article is part of a special topical focus in the Journal of Thermal Spray Technology on High Entropy Alloy and Bulk Metallic Glass Coatings. The issue was organized by Dr. Andrew S.M. Ang, Swinburne University of Technology; Prof. B.S. Murty, Indian Institute of Technology Hyderabad; Distinguished Prof. Jien-Wei Yeh, National Tsing Hua University; Prof. Paul Munroe, University of New South Wales; Distinguished Prof. Christopher C. Berndt, Swinburne University of Technology. The issue organizers were mentored by Emeritus Prof. S. Ranganathan, Indian Institute of Sciences.
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Liu, H., Li, X., Hua, P. et al. Microstructure and Properties of Laser-cladded Fe50Mn30Co10Cr10 High Entropy Alloy Coatings. J Therm Spray Tech 31, 991–999 (2022). https://doi.org/10.1007/s11666-021-01295-8
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DOI: https://doi.org/10.1007/s11666-021-01295-8