Thermophysical properties of Ti-5A1-5V-5Mo-3Cr-1Zr titanium alloy

The thermophysical properties of the Ti-5A1-5V-5Mo-3Cr-1Zr titanium alloy in a wide range of temperatures from room temperature to 1000°C have been studied by the methods of differential scanning calorimetry, the laser flash method, and dilatometry. The obtained data on heat capacity, thermal diffusivity, and thermal expansion have been used for calculating coefficient of thermal conductivity. The sequence and temperatures of structural transformations during heating of the alloy have been established. It has been shown that the studied alloy possesses a coefficient of thermal conductivity that is 3.5-4 times smaller than that of pure titanium. Keywords: titanium alloy, thermal conductivity, heat capacity, thermal expansion, thermal diffusivity, high temperatures, measurements DOI: 10.1134/S0031918X14050020