Heat Capacity of Corrosion-Resistant Refractory Alloy ChS88U-VI in the Temperature Range of 300–1270 K

An experimental investigation of the heat capacity of corrosion-resistant refractory nickel base alloy ChS88U-VI used as a material of the turbine blades for marine engines, blades of converted aircraft gas turbine engines and industrial gas turbine was carried out for the first time. The heat capacity of the alloy has been measured by the method of differential scanning calorimetry in the temperature range 300–1270 K of the solid state, including the phase transition region. The estimated error of the data obtained was 2–4%. The comparison with the promising nickel based superalloys Inconel 617 and Inconel 718 was made. Approximation equations and a table of recommended values of ChS88U-VI alloy heat capacity were developed for use in various engineering and scientific tasks.