Abstract
We present a modification of the semiempirical description of the volume–temperature dependences of the electrical and thermal conductivities of α iron that has a body-centered cubic lattice. We consider an interpolation of the volume–temperature dependences of the resistivity and thermal conductivity of α iron along high-temperature isobars and high-pressure isotherms in the pressure range from –5 to +5 GPa at temperatures of 400–800 K, which correspond to the thermodynamic conditions of the standard and emergency functioning of iron alloys. The interpolation of the electrical and thermophysical properties of α iron is performed based on the developed equation of state of α iron at high pressures and high temperatures. The effect of compression and extension on the thermal conductivity of α iron is estimated.
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This study was supported under state order no. AAAA-A19-119071190040-5.
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Translated by N. Wadhwa
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Molodets, A.M., Golyshev, A.A. The Volume–Temperature Dependence of Electrical and Thermophysical Properties of α Iron under High Pressures and Temperatures. Tech. Phys. 66, 1247–1252 (2021). https://doi.org/10.1134/S1063784221090127
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DOI: https://doi.org/10.1134/S1063784221090127