Study of the Properties of Antifriction Rings under Severe Plastic Deformation
Volokitina I. Kolesnikov A. Fediuk R. Klyuev S. Sabitov L. Volokitin A. Zhuniskaliyev T. Kelamanov B. Yessengaliev D. Yerzhanov A. Kolesnikova O.
April-1 2022MDPI
Materials
2022#15Issue 7
The paper studies the properties of brass workpieces for antifriction rings under severe plastic deformation by high-pressure torsion. The evolution of microstructure and mechanical properties of deformed workpieces after six cycles of deformation by high-pressure torsion at 500 °C have been studied. All metallographic studies were performed using modern methods: Transmission electron microscopy (TEM) and analysis electron back scatter diffraction patterns (EBSD). The deformation resulted in an ultrafine grained structure with a large number of large-angle boundaries. The strength properties of brass increased compared to the initial state almost by three times, the microhardness also increases by three times, i.e., increased from 820 MPa in the initial state to 2115 MPa after deformation. In this case, the greatest increase in strength properties occurs in the first two cycles of deformation.
Antifriction rings , Brass , Microstructure , Properties , Severe plastic deformation
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Department of Metallurgy and Mining, Rudny Industrial Institute, Rudny, 111500, Kazakhstan
Department of “Life Safety and Environmental Protection”, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
Polytechnic Institute, Far Eastern Federal University, Vladivostok, 690922, Russian Federation
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251, Russian Federation
Belgorod State Technological University Named after V.G. Shukhov, Belgorod, 308012, Russian Federation
Kazan Federal University, Kazan, 420008, Russian Federation
Department of Metal Forming, Department of Metallurgy and Materials Science, Karaganda Industrial University, Temirtau, 101400, Kazakhstan
Department of Metallurgy and Mining, K. Zhubanov Aktobe Regional University, Aktobe, 030000, Kazakhstan
Department of Metallurgy and Mining
Department of “Life Safety and Environmental Protection”
Polytechnic Institute
Peter the Great St. Petersburg Polytechnic University
Belgorod State Technological University Named after V.G. Shukhov
Kazan Federal University
Department of Metal Forming
Department of Metallurgy and Mining
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