Possibilities of complex experimental study of thermophysical and thermodynamic properties of selected steels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F19%3A10242536" target="_blank" >RIV/61989100:27350/19:10242536 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/19:10242536

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2238785418312651" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2238785418312651</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2019.06.001" target="_blank" >10.1016/j.jmrt.2019.06.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Possibilities of complex experimental study of thermophysical and thermodynamic properties of selected steels

Popis výsledku v původním jazyce

In this paper, selected key thermophysical and thermodynamical properties of steels (three alloys based on Fe-C-Cr) such as solidus (T-S) and liquidus (T-L) temperatures, peritectic transformation temperatures (T-P), heats of fusion (Delta H-F), specific heat capacities(c(P)), surface tension (sigma) , and wettability expressed by the wetting angle (theta) of liquid steel on alumina substrate were experimentally determined in a high-temperature area up to the temperature of 1600 degrees C. The effect of the temperature and the chemical composition of steel on these properties was investigated using 3D heat flux DSC (Differential Scanning Calorimetry) and a sessile drop method. The interaction of the steel samples with the alumina substrate was studied by SEM, EDX and XRD methods. To assess the influence of the major elements (carbon and chromium), the steels with different carbon and chromium content, which varied in the range of 0.077-0.381 wt.% and 0.049-4.990 wt.%, were chosen. It was shown that increasing carbon and chromium content led to a decrease in phase transformation temperatures and thermal capacities, as well as an increase in the heat of fusion, surface tension, and wetting angle. Furthermore, the rising temperature increases the thermal capacities and wetting angles. Whereas the surface tension followed the opposite trend. (C) 2019 The Authors. Published by Elsevier B.V.

Název v anglickém jazyce

Possibilities of complex experimental study of thermophysical and thermodynamic properties of selected steels

Popis výsledku anglicky

In this paper, selected key thermophysical and thermodynamical properties of steels (three alloys based on Fe-C-Cr) such as solidus (T-S) and liquidus (T-L) temperatures, peritectic transformation temperatures (T-P), heats of fusion (Delta H-F), specific heat capacities(c(P)), surface tension (sigma) , and wettability expressed by the wetting angle (theta) of liquid steel on alumina substrate were experimentally determined in a high-temperature area up to the temperature of 1600 degrees C. The effect of the temperature and the chemical composition of steel on these properties was investigated using 3D heat flux DSC (Differential Scanning Calorimetry) and a sessile drop method. The interaction of the steel samples with the alumina substrate was studied by SEM, EDX and XRD methods. To assess the influence of the major elements (carbon and chromium), the steels with different carbon and chromium content, which varied in the range of 0.077-0.381 wt.% and 0.049-4.990 wt.%, were chosen. It was shown that increasing carbon and chromium content led to a decrease in phase transformation temperatures and thermal capacities, as well as an increase in the heat of fusion, surface tension, and wetting angle. Furthermore, the rising temperature increases the thermal capacities and wetting angles. Whereas the surface tension followed the opposite trend. (C) 2019 The Authors. Published by Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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 periodika

Journal of Materials Research and Technology

ISSN

2238-7854

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

3635-3643

Kód UT WoS článku

000475748000025

EID výsledku v databázi Scopus

2-s2.0-85069042632