Abstract
New experimental data are given for the KhN55VMTKYu industrial nickel-based heat-resistant alloy on its heat capacity at temperatures from 300 to 1000 K and on the thermal conductivity coefficient at T = 380-1450 K. The newly obtained and previously available data are used to construct approximating equations and tables of smoothed values in the range from 300 to 1200 K for heat capacity, enthalpy, average heat capacity, thermal conductivity, average coefficient of thermal expansion, density, and thermal diffusivity of the alloy. The effect of disordering of the Ni3 (Ti, Al) intermetallic compound on the properties of the alloy is examined. The activation energy of disordering of the alloy Q = 0.93 eV and the temperature dependence of the enthalpy of disordering are estimated, as well as the concentration of intermetallic compound in the alloy.
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Translated from Teplofizika Vysokikh Temperatur, Vol. 43, No. 1, 2005, pp. 051#x2013;056. Original Russian Text Copyright © 2005 by V. Ya. Chekhovskoi and V. E. Peletskii.
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Chekhovskoi, V.Y., Peletskii, V.E. The thermophysical properties of KhN55VMTKYu nickel-based heat-resistant alloy. High Temp 43, 51–57 (2005). https://doi.org/10.1007/PL00021855
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DOI: https://doi.org/10.1007/PL00021855