from the conferences organized by TANGER Ltd.
Three model alloys based on FeCCrNi were studied. Alloys contained 0.34 0.36 wt. % of carbon and chromium and nickel in the range of 1.04 – 4.96 wt. %. Thermal expansion coefficient and density were studied in the temperature range of 200 – 1600 °C. Temperatures of phase transformations in the low and hightemperature area were evaluated too. The experimental data were obtained using dilatometry. The NETZSCH DIL 402 Expedis Supreme with NanoEye, the optoelectrical displacement system, was used for experiments. Measurements were done in an inert atmosphere of pure helium by a heating rate of 10 °C/min. The experimental data were compared and discussed with the calculation results using SW ThermoCalc with implemented Fe-based alloys database TCFE8.1 and SW JMatPro with implemented General steel database. The influence of various contents of chromium and nickel was studied.
Keywords: Fe-C-Cr-Ni alloys, dilatometry, thermal expansion coefficient, density, temperatures of phase transformation, Thermo-Calc, JMatPro© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.