Mechanical and Optical Properties of Chromium Deformed in the Region of Temperatures 77...300 K

Temperature dependence mechanical (at 77...300 K) and optical (at 300 K) characteristics of chromium in two structural conditions - in initial state and with preliminary dynamically created system of twin layers are investigated. According to mechanical tests it is established, that the temperature ductile-brittle transition (Tx) after preliminary twinning is displaced on 20 K to low temperatures. On dependencies of change of reflectivity (ΔR) the investigated two types of samples from temperature of deformation find out of maximum at Tkp. Mechanisms of deformation in a research range of temperature are discussed