Preliminary communication

Thermophysical properties of nickel-based cast superalloys

R. Przeliorz ; The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland
J. Piątkowski ; The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland

Abstract

The article presents tests results of specific heat storage capacity and oxidation resistance of nickel - based cast Mar M - 200, Mar - M - 247 and Rene 80 superalloys. Specific heat measurements were conducted with the use of differential scanning calorimetry (DSC), with the use of high - temperature calorimeter multi (HTC) Setaram. Oxidation resistance tests were conducted with the use of cyclic temperature change method. Each cycle consisted of heating by temperature of 1 100 °C and next quick cooling in air. It was proved that the biggest value of specific heat C_p was found in alloy Mar - M - 200, and the lowest in alloy Mar - M - 247. Relatively good oxidation resistance has been found in alloy Mar - M - 247.

Keywords

nickel superalloys cast; specific heat; heat resistance

Hrčak ID:

131618

URI

https://hrcak.srce.hr/131618

Publication date:

1.7.2015.

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