Experimental Study of Rheological Properties of Fe-C-O-Cr alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10243561" target="_blank" >RIV/61989100:27360/19:10243561 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.metalconference.eu/files/uploads/02//METAL2019_Conference_Proceedings_Content.pdf" target="_blank" >https://www.metalconference.eu/files/uploads/02//METAL2019_Conference_Proceedings_Content.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Study of Rheological Properties of Fe-C-O-Cr alloys

Popis výsledku v původním jazyce

Rheological properties (dynamic viscosity, flow curves) of selected Fe-C-O-Cr alloys were experimentally investigated with the use of a high-temperature rotating viscometer Anton Paar FRS 1600. The viscosity of concerned alloys was measured during cooling at a rate of 2.5 oC/min. The maximum temperature achieved within experiments was 1,550 oC. The flow curves were recorded at this temperature to assess flow properties. According to their shape, all alloys exhibited non-Newtonian behaviour. At the temperature of 1,550 oC, the alloys behaved as shear thickening fluids. Given that viscosity depends mainly on the change in temperature and chemical composition, these aspects were considered in this work. Two series of model Fe-C-O-Cr alloys, which differed in chromium (0.924 wt.% - 4.795 wt.%) and carbon (0.042 wt.% - 1.378 wt.%) content, were selected to examine the influence of these elements. In the given concentration ranges, only slight dependence of viscosity on chromium and carbon content was found. Further, the viscosity increased exponentially with decreasing temperature at measured temperature intervals of 1,550 oC - 1,450 oC (1,350 oC).

Název v anglickém jazyce

Experimental Study of Rheological Properties of Fe-C-O-Cr alloys

Popis výsledku anglicky

Rheological properties (dynamic viscosity, flow curves) of selected Fe-C-O-Cr alloys were experimentally investigated with the use of a high-temperature rotating viscometer Anton Paar FRS 1600. The viscosity of concerned alloys was measured during cooling at a rate of 2.5 oC/min. The maximum temperature achieved within experiments was 1,550 oC. The flow curves were recorded at this temperature to assess flow properties. According to their shape, all alloys exhibited non-Newtonian behaviour. At the temperature of 1,550 oC, the alloys behaved as shear thickening fluids. Given that viscosity depends mainly on the change in temperature and chemical composition, these aspects were considered in this work. Two series of model Fe-C-O-Cr alloys, which differed in chromium (0.924 wt.% - 4.795 wt.%) and carbon (0.042 wt.% - 1.378 wt.%) content, were selected to examine the influence of these elements. In the given concentration ranges, only slight dependence of viscosity on chromium and carbon content was found. Further, the viscosity increased exponentially with decreasing temperature at measured temperature intervals of 1,550 oC - 1,450 oC (1,350 oC).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA17-18668S" target="_blank" >GA17-18668S: Komplexní experimentální výzkum vybraných vlastností kvaternárních a quinárních systémů Fe-C-O-X(Y), (X,Y=Cr,Ni) za vysokých teplot</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2019 : conference proceedings : peer reviewed : 28th International Conference on Metallurgy and Materials : May 22nd-24th 2019, Hotel Voronez I, Brno, Czech Republic, EU

ISBN

978-80-87294-92-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

181-186

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

22. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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