Study of microstructure and thermal properties of as-cast high carbon and high chromium tool steel

Authors

  • Dragan Miroslav Manasijevic University of Belgrade, Technical Faculty, Bor, Serbia
  • Žarko Radović University of Montenegro, Faculty of Metallurgy and Technology, Cetinjski put, bb, 81000, Podgorica, Montenegro
  • Nada Štrbac University of Belgrade, Technical faculty in Bor, VJ12, 19210 Bor, Serbia
  • Ljubiša Balanović University of Belgrade, Technical faculty in Bor, VJ12, 19210 Bor, Serbia
  • Uroš Stamenković University of Belgrade, Technical faculty in Bor, VJ12, 19210 Bor, Serbia
  • Milan Gorgievski University of Belgrade, Technical faculty in Bor, VJ12, 19210 Bor, Serbia
  • Duško Minić University of Priština, Faculty of Technical Science, Kneza Miloša 7, 4000 Kosovska Mitrovica, Serbia
  • Milena Premović University of Priština, Faculty of Technical Science, Kneza Miloša 7, 4000 Kosovska Mitrovica, Serbia
  • Tamara Holjevac Grgurić University of Zagreb, Faculty of Metallurgy, Aleja narodnih heroja 3, Sisak, Croatia
  • Nebojša Tadić University of Montenegro, Faculty of Metallurgy and Technology, Cetinjski put, bb, 81000, Podgorica, Montenegro

DOI:

https://doi.org/10.30544/392

Keywords:

high alloy tool steel, scanning electron microscopy, thermal conductivity, differential scanning calorimetry, as-cast

Abstract

This work aims to investigate the microstructural and thermal properties of as-cast high carbon and high chromium cold work tool steel. The microstructure was investigated by using scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) and X-ray diffraction (XRD) method. It was determined that at room temperature the microstructure of the investigated tool steel includes a lamellar network of M7C3 carbide precipitates along grain boundaries of ferrite grains in the base. Thermal diffusivity, specific heat capacity and thermal conductivity of the investigated steel alloy were determined in the temperature interval from 25 to 400 °C by using the laser-flash method. Thermal conductivity increases from 24.9 at 25 °C to 26.9 W/m ·K at 400 °C. Phase transition temperatures in the temperature region from room temperature to 1250 °C were experimentally determined using differential scanning calorimetry (DSC). One endothermic effect in the temperature interval from 803 to 820 °C, corresponding to the ferrite/austenite phase transformation, was detected during sample heating. Experimental results were compared with the results of phase equilibria calculations obtained from the ThermoCalc software and TCFE6 database.

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Published

2019-03-31

How to Cite

Manasijevic, Dragan Miroslav, Žarko Radović, Nada Štrbac, Ljubiša Balanović, Uroš Stamenković, Milan Gorgievski, Duško Minić, Milena Premović, Tamara Holjevac Grgurić, and Nebojša Tadić. 2019. “Study of Microstructure and Thermal Properties of As-Cast High Carbon and High Chromium Tool Steel”. Metallurgical and Materials Engineering 25 (1):1-10. https://doi.org/10.30544/392.

Issue

Vol. 25 No. 1 (2019)

Section

Research

License

Copyright (c) 2018 Dragan Miroslav Manasijevic, Žarko Radović, Nada Å trbac, Ljubiša Balanović, Uroš Stamenković, Milan Gorgievski, Duško Minić, Milena Premović, Tamara Holjevac Grgurić, Nebojša Tadić

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