The influence of irradiation by electrons with energies of 4 MeV, in doses of 10~(16), 0.5 centre dot 10~(17), and 10~(17) electrons per square centimeter, and dose rate of 10~(12) electrons per cm~2 centre dot s on hardening of twin boundaries is studied. It is established that this step helps to increase the degree of hardening of the boundaries of wedge-like twins.
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