Determination of thermophysical properties of high temperature alloy IN713LC by thermal analysis

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Show simple item record Zlá, Simona Smetana, Bedřich Žaludová, Monika Dobrovská, Jana Vodárek, Vlastimil Konečná, Kateřina Matějka, Vlastimil Francová, Hana 2012-11-16T08:09:41Z 2012-11-16T08:09:41Z 2012
dc.identifier.citation Journal of thermal analysis and calorimetry. 2012, vol. 110, issue 1, p. 211-219. cs
dc.identifier.issn 1388-6150
dc.identifier.issn 1572-8943
dc.description.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 (T γ′,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′. cs
dc.language.iso en cs
dc.publisher Springer cs
dc.relation.ispartofseries Journal of thermal analysis and calorimetry cs
dc.relation.uri cs
dc.subject DTA cs
dc.subject IN713LC cs
dc.subject temperatures of phase transformations cs
dc.subject scanning electron microscopy cs
dc.title Determination of thermophysical properties of high temperature alloy IN713LC by thermal analysis cs
dc.type article cs
dc.identifier.location Není ve fondu ÚK cs
dc.identifier.doi 10.1007/s10973-012-2304-8
dc.rights.access openAccess
dc.type.version submittedVersion
dc.type.status Peer-reviewed cs
dc.description.source Web of Science cs
dc.description.volume 110 cs
dc.description.issue 1 cs
dc.description.lastpage 219 cs
dc.description.firstpage 211 cs
dc.identifier.wos 000309709900028

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