Comparison of liquidus and solidus temperatures of steel cast into ingots identified by different thermo-analytical methods

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10237333" target="_blank" >RIV/61989100:27360/17:10237333 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Comparison of liquidus and solidus temperatures of steel cast into ingots identified by different thermo-analytical methods

Original language description

In the framework of optimising, correct setting of the casting process, knowledge of solidus temperature (TS) and especially liquidus temperature (TL) of produced steel grade is necessary. There are options to determine these temperatures: the use of empirical equations or calculations by specialised programs (thermodynamic databases). These calculations are based on the data of steel chemical composition and final temperature of phase transformation is then its reflection. TS and TL values then may not completely correspond to reality as well. It is very appropriate to employ a combination of different methods of thermal analysis and theoretical prediction for confrontation of experimental and calculated TL and TS. Three modern devices for high temperature thermal analysis and two specialised programs of theoretical prediction are available at the Faculty of Metallurgy and Materials Engineering. Direct thermal analysis method (dirTA) and parallel currently mass-enhanced method of thermal analysis, differential thermal analysis (DTA), were used for determination of TL and TS of studied real steel grades. Simultaneous application of both methods allows to reduce significantly disadvantages of each method and recommend proper TL and TS into the casting process and real conditions of industrial partner. Paper is focused on the discussion of TL and TS of steels cast into ingots (9 melts; 7 steel grades) analysed in the frame of a project TA0410035. Submitted evaluation refers an importance of the parallel utilization of different methods, their accuracy and reproducibility and also the divergences between TL and TS experimentally determined, empirically calculated and predicted by thermodynamic SWs’ calculations.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Article name in the collection

METAL 2017: conference proceedings : 26th International Conference on Metallurgy and Materials : (reviewed version) : May 24th-26th 2017, Hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-79-6

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

89-96

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

May 24, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000434346900010