Intense plastic deformation of high-purity cast beryllium

• Main Authors: Vasilev, A.A., Stetsenko, S.P., Vasilenko, R.L., Malykhin, D.G., Stoyev, P.I., Khovrich, S.V., Trembach, O.V., Kovtun, K.V.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2020
• Series: Вопросы атомной науки и техники
• Subjects: Physics and the technology of construction materials
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/194745

The effect of intense plastic deformation on the mechanical properties, structure, and texture of high-purity cast beryllium was studied. For the first time, angular pressing of high-purity cast beryllium was carried out at temperatures of 600 and 500 °C. It is shown that the degree of grain refinement during angular pressing into a strip reaches a significant value. In one deformation cycle, the grain is crushed from 3 mm to 10 μm. The temperature dependences of the mechanical properties of the material of extruded billets in the initial state and after recrystallization annealing at a temperature of 650 °C for one hour were studied. It has been established that the best mechanical properties have samples of material deformed at 600 °C and subsequent annealing at 650 °C for an hour.