Abstract
1. It was established that the strength increases with increasing degrees of deformation during HTTMT, the maximum increase occurring with 30% deformation. Subsequent age hardening increases the strength. The plasticity of the alloy also increases somewhat after HTTMT and subsequent age hardening in comparison with the standard treatment. 2. High-temperature thermomechanical treatment of both alloys creates a stable configuration of defects, which guarantees retention of the advantages of HTTMT with increasing temperatures. However, at the highest temperature the VT3-1 alloy recrystallizes more rapidly after HTTMT than after the standard treatment because of the higher rate of diffusion in the structure with defects.
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