In Situ Medium Entropy Intermetallic Reinforced Composite Coating Fabricated by Additive Manufacturing
Ahmad Ostovari Moghaddam,
Nataliya Aleksandrovna Shaburova,
Marina Nikolaevna Samodurova,
Yuliya Sergeevna Latfulina,
Dmitry Vyacheslavovich Mikhailov,
Evgeny Alekseevich Trofimov
Affiliations
Ahmad Ostovari Moghaddam
Advanced Materials and Nanotechnology Research Laboratory, Faculty of Materials Science and Engineering, K.N. Toosi University of Technology, Tehran 1999143344, Iran
Nataliya Aleksandrovna Shaburova
Department of Materials Science, Physical and Chemical Properties of Materials, South Ural State University, 76 Lenin Av., 454080 Chelyabinsk, Russia
Marina Nikolaevna Samodurova
Department of Information and Measuring Technology, South Ural State University, 76 Lenin Av., 454080 Chelyabinsk, Russia
Yuliya Sergeevna Latfulina
Department of Information and Measuring Technology, South Ural State University, 76 Lenin Av., 454080 Chelyabinsk, Russia
Dmitry Vyacheslavovich Mikhailov
Department of Materials Science, Physical and Chemical Properties of Materials, South Ural State University, 76 Lenin Av., 454080 Chelyabinsk, Russia
Evgeny Alekseevich Trofimov
Department of Materials Science, Physical and Chemical Properties of Materials, South Ural State University, 76 Lenin Av., 454080 Chelyabinsk, Russia
The possibility of stabilizing different amounts of medium-entropy intermetallic compounds (MEIMCs) within a multicomponent matrix using laser cladding is demonstrated. The results indicated that MEIMC with a B2 structure could be successfully formed within a multicomponent BCC matrix during laser cladding of a proper ratio of Al, Fe, Co, Cu, Mn, and Ni powders. Two coatings with different contents of MEIMC were fabricated by changing the feeding rate of the powder mixture. Based on the X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analyses, the Al-rich intermetallic particles were qualitatively identified as (Fe0.55Co0.18Cu0.22Ni0.03Mn0.02)Al MEIMC. It was also found that the feeding rate affects the content of MEIMC, and consequently, the grain structure and microhardness values. Finally, we propose MEIMC-reinforced alloys as a more effective alternative system to be used for fabricating high-performance coatings using laser cladding.
