Measurement of shock residual temperature in steel with the help of phase transitions in zirconium and titanium

The phase structure of recovered zirconium and titanium samples was studied after loading by plane shocks waves in steel ampoules up to pressure 8-32 GPa. Beginning from some critical pressure residual heating results in full decomposition of the ω-phase. This fact is the basis of evaluation of residual temperature. Obtained values of residual temperature in steel 240 - 500 C in an interval of pressure 23 - 32 GPa turned out to be much higher than values, obtained from temperature calculations usually used for shock waves. (orig.)