Maqola

Study of the Properties of Antifriction Rings under Severe Plastic Deformation

Irina VolokitinaDepartment of Metallurgy and Mining, Rudny Industrial Institute, Rudny 111500, KazakhstanAlexandr KolesnikovDepartment of “Life Safety and Environmental Protection”, M. Auezov South Kazakhstan University, Shymkent 160012, KazakhstanРоман ФедюкPeter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaSergey KlyuevBelgorod State Technological University Named after V.G. Shukhov, 308012 Belgorod, RussiaLinar SabitovKazan Federal University, 420008 Kazan, RussiaAndrey VolokitinDepartment of Metal Forming, Department of Metallurgy and Materials Science, Karaganda Industrial University, Temirtau 101400, KazakhstanTalgat ZhuniskaliyevDepartment of Metal Forming, Department of Metallurgy and Materials Science, Karaganda Industrial University, Temirtau 101400, KazakhstanBauyrzhan KelamanovDepartment of Metallurgy and Mining, K. Zhubanov Aktobe Regional University, Aktobe 030000, KazakhstanDauren YessengalievDepartment of Metallurgy and Mining, K. Zhubanov Aktobe Regional University, Aktobe 030000, KazakhstanAlmas YerzhanovDepartment of Metal Forming, Department of Metallurgy and Materials Science, Karaganda Industrial University, Temirtau 101400, KazakhstanOlga KolesnikovaDepartment of “Life Safety and Environmental Protection”, M. Auezov South Kazakhstan University, Shymkent 160012, Kazakhstan

2022en

ABI

Annotatsiya

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.

Hali tarjima qilinmagan

Identifikatorlar

DOI: 10.3390/ma15072584

Iqtiboslar va manbalar

2 ta iqtibos0 ta foydalanilgan manba

Koʻrsatkichlar — AkademScholar