EVALUATION OF THE PHASE STABILITY, MICROSTRUCTURE, AND DEFECTS IN HIGH-ENTROPY CERAMICS AFTER HIGH-ENERGY ION IMPLANTATION
Pogrebnjak A.D. Buranich V.V. Horodek P. Budzynski P. Konarski P. Amekura H. Okubo N. Ishikawa N. Bagdasaryan A. Rakhadilov B. Tarelnik V. Sobaszek Ł. Zukowski P. Opielak M.
2022Begell House Inc.
High Temperature Material Processes
2022#26Issue 377 - 93 pp.
The location and distribution of atoms in the crystal lattice play a major role in controlling the mechanical and tribological properties of high-entropy alloy (HEA) ceramic materials. Herein, vacuum arc-deposited (TiZrHfVNb)N coatings have been implanted with 200 MeV xenon (Xe14+) ions at room temperature and fluences of 5 × 1011, 5 × 1012, and 5 × 1013 ions/cm2. The defect structure evolution of Xe-related defects and their effects on the structural, nanomechanical, and tribological properties of HEA nitride were characterized. The results show redistribution of lattice atoms and defects. Further-more, it is found that the decrease of the wear rate in the implanted coating (5 × 1011 ions) from 9.7 × 10–6 to 4.85 × 10–5 mm3·m–1·N–1 has resulted from new defect combinations (vacancies, interstitial voids, and dislocations). Another source responsible for deterioration of properties was the breaking disorder of the elemental composition revealed by mapping the elemental composition by secondary-ion mass spectrometry (SIMS). These findings enhance the fundamental understanding of the high-energy irradiation effect on HEA ceramics.
high-entropy alloy , ion implantation , microstructure analysis , positron annihilation spectroscopy , vacancy , wear
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Sumy State University, 2, Rymskogo-Korsakova St., Sumy, 40007, Ukraine
Al-Farabi Kazakh National University, Department of Biotechnology, Almaty, Kazakhstan
D. Serikbayev East Kazakhstan State Technical University 69, Protozanova Str, Ust-Kamenogorsk, 070004, Kazakhstan
Institute of Nuclear Physics Polish Academy of Sciences, Krakow, PL-31342, Poland
Lublin University of Technology, Nadbystrzycka Str. 36, Lublin, 20-618, Poland
Lukasiewicz Research Network–Tele and Radio Research Institute, 11, Ratuszowa St., Warsaw, 03-450, Poland
National Institute for Materials Science (NIMS), Ibaraki, Tsukuba, 305-0003, Japan
Japan Atomic Energy Agency (JAEA), Ibaraki, Tokai, 319-1195, Japan
Sarsen Amanzholov East-Kazakhstan State University, Ust-Kamenogorsk, Kazakhstan
Sumy National Agrarian University, Sumy, Ukraine
Sumy State University
Al-Farabi Kazakh National University
D. Serikbayev East Kazakhstan State Technical University 69
Institute of Nuclear Physics Polish Academy of Sciences
Lublin University of Technology
Lukasiewicz Research Network–Tele and Radio Research Institute
National Institute for Materials Science (NIMS)
Japan Atomic Energy Agency (JAEA)
Sarsen Amanzholov East-Kazakhstan State University
Sumy National Agrarian University
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