Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 110: Issue 1
Determination of thermophysical properties of high temperature alloy IN713LC by thermal analysis
Authors:
Simona Zlá Department of Physical Chemistry and Theory of Technological Processes, Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Bedřich Smetana Department of Physical Chemistry and Theory of Technological Processes, Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Monika Žaludová Department of Physical Chemistry and Theory of Technological Processes, Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Jana Dobrovská Department of Physical Chemistry and Theory of Technological Processes, Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Vlastimil Vodárek Department of Materials Engineering, Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Kateřina Konečná Department of Materials Engineering, Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Vlastimil Matějka VŠB-TU Ostrava, Nanotechnology Centre, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Hana Francová Department of Physical Chemistry and Theory of Technological Processes, Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, Czech Republic

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Pages:
211–219
Online Publication Date:
20 Mar 2012
Publication Date:
01 Oct 2012
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-012-2304-8
Keywords:
DTA; IN713LC; Temperatures of phase transformations; Scanning electron microscopy
Restricted access

Abstract

The presented paper deals with the study of thermophysical properties of cast and complex alloyed nickel based on superalloy Inconel 713LC (IN713LC). In this work, the technique of Differential Thermal Analysis was selected for determination of the phase transformation temperatures and for the study of the effect of varying heating/cooling rate at these temperatures. The samples taken from as-received state of superalloy were analysed at heating and cooling rates of 1, 5, 10, 20 and 50 °C min−1 with the help of the experimental system Setaram SETSYS 18TM. Moreover, the transformation temperatures at zero heating/cooling rate were calculated. The recommended values for IN713LC after correcting to a zero heating rate, are 1,205 °C (Tγ′,solvus), 1,250 °C (solidus) and 1,349 °C (liquidus). Influence of heating/cooling rate on shift of almost all temperatures of phase transformations was established from the DTA curves. Undercooling was observed at the cooling process. The samples before and after DTA analysis were also subjected to the phase analysis by scanning electron microscopy using the microscope JEOL JSM-6490LV equipped with an energy dispersive analyser EDAX (EDS INCA x-act). Documentation of the microstructure was made in the mode of secondary (SEI) and backscattered (BEI) electron imaging. On the basis of DTA analysis and phase analysis it may be stated that development of phase transformations of the alloy IN713LC will probably correspond to the following scheme: melting → γ phase; melting → γ + MC; melting → eutectics γ/γ′; melting → γ + minority phases (e.g. borides); and matrix γ → γ′.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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