Original scientific paper

Comparison of measured and calculated thermophysical properties of nickel super-alloys

A. Kalup ; VŠB-TU Ostrava, FMME, Ostrava, Czech Republic
S. Zlá ; VŠB-TU Ostrava, FMME, Ostrava, Czech Republic
M. Kawuloková ; VŠB-TU Ostrava, FMME, Ostrava, Czech Republic
J. Dobrovská ; VŠB-TU Ostrava, FMME, Ostrava, Czech Republic
B. Smetana ; VŠB-TU Ostrava, FMME, Ostrava, Czech Republic

Abstract

Three real grades of nickel super-alloys (IN 713LC, IN 738LC and IN 792-5A) were investigated and values of temperatures of phase transformations and latent heats of melting were obtained. All investigated quantities are very important for thermodynamic and kinetic modelling. Moreover, these data are also valuable for a lot of software used for technological processes modelling. Experimental values were obtained using Differential Thermal Analysis (DTA) measurements. Calculations were performed using Thermo-Calc 3.1 software with the use of three different databases (SSOL5, TTNI8 and TCNI6). Comparison and discussion of experimental and calculated data was performed.

Keywords

nickel super-alloy; thermophysical properties; differential thermal analysis; latent heat of melting; temperatures of phase transformation

Hrčak ID:

153616

URI

https://hrcak.srce.hr/153616

Publication date:

1.7.2016.

Visits: 1.550 *