INTENSE PLASTIC DEFORMATION OF HIGH-PURITY CAST BERYLLIUM

A.A. Vasil'ev, S.P. Stetsenko, R.L. Vasilenko, D.G. Malykhin, P.I. Stoyev, S.V. Khovrich, O.V. Trembach, K.V. Kovtun
2020 Problems of Atomic Science and Technology  
Studies were made into the effect of severe plastic deformation on the mechanical properties, structure, and texture of high-purity cast beryllium. 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 a single deformation cycle, the grain is crushed from 3 mm down to 10 μm. Temperature dependences of the mechanical
more » ... roperties 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 are shown by the samples of material deformed at 600 °C with subsequent annealing at 650 °C for an hour.
doi:10.46813/2020-125-230 fatcat:b365aqn3qjfvjpo4bjpapf7vlu