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Conference Proceedings - METAL 2021
30th Anniversary International Conference on Metallurgy and Materials
May 26 - 28, 2021 / Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-99-4
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
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TIMOSHENKO Sergii Donetsk National Technical University, Pokrovsk, Ukraine, stimoshenko155@gmail.com
Co-authors:
SMIRNOV Aleksii
NIEMTSEV Eduard
DOI: https://doi.org/10.37904/metal.2021.4080, 21-26
Abstract:
Electric arc furnaces (EAF), especially of foundry class, operating with a long-term technological period, are characterized by a high level of energy loss. Intensification of heat and mass transfer in steelmaking bath by pneumatic or electromagnetic (EMS) stirring contributes to increase energy efficiency of the EAF. [..]
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HAMPL Jiří VŠB - Technical University of Ostrava, Department of Metallurgy and Foundry, Ostrava-Poruba, Czech Republic, EU, jiri.hampl@vsb.cz
Co-authors:
VÁLEK Tomáš
ZDAŘIL Ladislav
DOI: https://doi.org/10.37904/metal.2021.4081, 27-33
Abstract:
The paper analyses the magnitude of foundry stresses in cast iron and steel castings. For the analysis of foundry stresses, a new methodology for measuring the level of residua! stresses on modified test bodies was proposed to test the propensity of iron alloys to hot-cracks and cold-cracks. [..]
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JAKUBUS Aneta The Jacob of Paradies University in Gorzów Wielkopolski, Gorzów Wielkopolski, Poland, EU, jakubusaneta@wp.pl, jkostrzewa@ajp.edu.pl
Co-authors:
KOSTRZEWA Joanna
OCIEPA Ewa
DOI: https://doi.org/10.37904/metal.2021.4082, 34-39
Abstract:
The paper presents the results of investigation concerning the strength properties of the vermicular and the nodular cast iron both in the as-cast state and after the heat treatment held according to a couple of various options. The nodular cast iron exhibited almost 100% nodular graphite precipitates and the purely pearlitic matrix. [..]
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CHUDOBOVÁ Lucie VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, lucie.chudobova@vsb.cz, marketa.tkadleckova@vsb.cz, michaela.strouhalova@vsb.cz, karel.michalek@vsb.cz, josef.walek@vsb.cz, michal.sniegon@vsb.cz
Co-authors:
TKADLEČKOVÁ Markéta
CIBULKA Jiří
STROUHALOVÁ Michaela
MICHALEK Karel
WALEK Josef
SNIEGOŇ Michal
MERDER Tomasz
DOI: https://doi.org/10.37904/metal.2021.4083, 40-45
Abstract:
The paper presents analysis of phase transformation temperatures of 20MnCr5 steel. For calculations of required temperatures, i.e. [..]
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SNIEGOŇ Michal VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, michal.sniegon@vsb.cz, marketa.tkadleckova@vsb.cz, karel.michalek@vsb.cz, lucie.chudobova@vsb.cz, michaela.strouhalova@vsb.cz, josef.walek@vsb.cz
Co-authors:
TKADLEČKOVÁ Markéta
HUCZALA Tomáš
MICHALEK Karel
CHUDOBOVÁ Lucie
STROUHALOVÁ Michaela
WALEK Josef
PIEPRZYCA Jacek
DOI: https://doi.org/10.37904/metal.2021.4084, 46-52
Abstract:
The paper deals with the possibility of thermodynamic analysis of CaO - SiO2 - Al2O3 - MgO slag system for optimizing of steel desulphurization in a ladle. From the point of view of reducing the sulphur content in steel, the chemical composition of the slag plays a crucial role which affects a critical thermodynamic parameter of the slag, such as the liquidus temperature of the slag, the amount of solid phases in slag at range of refining temperatures, respectively the effective viscosity of slag and CaO saturation in slag. [..]
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SIWIEC Dominika Rzeszow University of Technology, Rzeszow, Poland, EU, d.siwiec@prz.edu.pl, app@prz.edu.pl
Co-authors:
PACANA Andrzej
DOI: https://doi.org/10.37904/metal.2021.4085, 53-58
Abstract:
A popular way in applying to identify incompatibilities of a product are non-destructive testing (NDT). However, this research is not allowed to identify the causes of incompatibilities. [..]
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Bulanov Andrey G.G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, Nizhny Novgorod, belozerov@ihps-nnov.ru
Co-authors:
Belyaev Igor
Churbanov Mikhail
Belozerov Yuriy
Troshin Oleg
Potapov Aleksandr
Savchenko Alexander
Mogilnikov Pavel
Melnikov Sergey
Politova Galina
DOI: https://doi.org/10.37904/metal.2021.4086, 59-64
Abstract:
The magnetic properties of polycrystalline samples of isotopically enriched iron with the content of isotope 56Fe 99.945±0.002 at. % were investigated at different magnetic field strength values. [..]
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KALENGA WA KALENGA Michel University of Johannesburg, Faculty of Engineering and the Built Environment, School of Mining, Metallurgy and Chemical Engineering, Johannesburg, South Africa, michelk@uj.ac.za
DOI: https://doi.org/10.37904/metal.2021.4087, 65-70
Abstract:
The production of High carbon ferromanganese industry worldwide is facing gigantic challenges due an ever-increasing production cost that is mainly due to the yearly increase of electricity and the depletion of metallurgical coke. The power supply in some part of the world has become a challenge therefore impacting the productivity and slowing the growth of economies. [..]
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KOVÁR Filip VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, filip.kovar.st@vsb.cz, lucie.bartonova@vsb.cz
Co-authors:
BARTOŇOVÁ Lucie
DOI: https://doi.org/10.37904/metal.2021.4088, 71-76
Abstract:
During last decades, extracting value-added products from industrial waste materials became a crucial research area because it not only provides valuable products but also mitigates the problem with disposal of these wastes and, at the same time, it facilitates saving natural resources. Various dense media for industrial separations are based on a variety of raw materials or commercially manufactured materials, such as clay, quartz, slate, galena, magnetite or ferrosilicon. [..]
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MACHŮ Mario VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, mario.machu@vsb.cz
Co-authors:
DROZDOVÁ Ľubomíra
SMETANA Bedřich
DOI: https://doi.org/10.37904/metal.2021.4089, 77-82
Abstract:
The specific heat capacity of substances is one of the determining thermal technical properties of technical materials such as steels influencing their heating or cooling. Knowledge of their values is necessary for accurate calculations of processes such as solidification during casting in the form of continuously cast billets or ingots and during heating before forming processes or during heat treatment of finished products. [..]
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TEN Edis B. National University of Science and Technology “MISIS, Moscow, Russia, edis_ten@mail.ru
Co-authors:
HER Irina B.
DROKIN Alexander S.
DOI: https://doi.org/10.37904/metal.2021.4070, 83-87
Abstract:
The crystallization features of nodular cast iron alloyed with 19-25% Al have been investigated. Using the Thermo-Calc computer program, polythermal sections of the phase diagrams of the quaternary Fe-Al-C-Si system were obtained on an aluminum scale from 0 to 40% with varying carbon and silicon contents between 1.5–2.5 and 1.0–2.0%, respectively. [..]
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CONSTANTINESCU Dan University Politehnica of Bucharest, Romania, EU
Co-authors:
CARLAN Adriana Beatrice
DOI: https://doi.org/10.37904/metal.2021.4071, 88-94
Abstract:
The work analyzes the influence of some pollutant elements due to metallurgical plants (defined as “metallurgical systems”) on the environment. The noise is an important pollutant factor. [..]
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LANZERSTORFER Christof University of Applied Sciences Upper Austria, Wels, Austria, EU, c.lanzerstorfer@fh-wels.at
DOI: https://doi.org/10.37904/metal.2021.4072, 95-100
Abstract:
Top-gas dedusting at blast furnaces (BF) is usually done with venturi scrubbers. However, in recent years, the total dry dedusting of BF top-gas has become a common technology. [..]
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OPĚLA Petr VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, petr.opela@vsb.cz
Co-authors:
SCHINDLER Ivo
RUSZ Stanislav
NAVRÁTIL Horymír
DOI: https://doi.org/10.37904/metal.2021.4073, 101-107
Abstract:
Activation energy at hot deformation represents a valuable physical quantity which finds its application e.g. in the case of a hot flow stress description. [..]
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ROUČKA Jaromír Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic, EU, roucka@fme.vutbr.cz
Co-authors:
KAŇA Václav
PERNICA Vítězslav
NYÉKYOVÁ Dominika
ZÁDĚRA Antonín
DOI: https://doi.org/10.37904/metal.2021.4074, 108-114
Abstract:
The research examined the influence of different kinds of graphite inoculants when casting nodular cast iron on the structure and mechanical properties of the castings. The test alloy was a nodular cast iron corresponding with the ČSN EN GJS 450 standard. [..]
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DROZDOVÁ Ľubomíra Faculty of materials science and technology, VŠB-Technical University of Ostrava, Czech Republic, EU, lubomira.drozdova@vsb.cz
Co-authors:
SMETANA Bedřich
MACHŮ Mario
ZLÁ Simona
KAWULOKOVÁ Monika
FRANCOVÁ Hana
NOVÁK Vlastimil
ŘEHÁČKOVÁ Lenka
DOI: https://doi.org/10.37904/metal.2021.4075, 115-120
Abstract:
Three model alloys based on FeCCrNi were studied. Alloys contained 0.34 0.36 wt. [..]
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POLOZOV Igor Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia, polozov_ia@spbstu.ru
Co-authors:
KANTYUKOV Artem
STARIKOV Kirill
GRACHEVA Anna
POPOVICH Vera
POPOVICH Anatoly
DOI: https://doi.org/10.37904/metal.2021.4076, 121-126
Abstract:
Titanium aluminide alloys are considered to be attractive materials for aerospace and automotive high-temperature applications due to their high specific strength, creep resistance, and heat resistance. However, their brittleness makes it difficult to manufacture complex-shaped components of these alloys using conventional processes making additive manufacturing a promising way to produce titanium aluminide parts. [..]
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KURBATOV Andrei D. Mendeleev University of Chemical Technology of Moscow, Russia, kurbatov@muctr.ru
Co-authors:
KUZIN Evgenii
VETROVA Margarita
SITNIKOV Ilia
SITNIKOV Alexey
DOI: https://doi.org/10.37904/metal.2021.4077, 127-132
Abstract:
As part of the work, an alternative environmentally friendly technology for water treatment of natural waters was proposed and tested, based on the combined use of hydrodynamic water treatment and ultrafiltration on ceramic membrane filters. The hydrodynamic characteristics of the treated water flow have been determined to achieve the maximum intensification of the oxidation processes of ferrous iron and manganese ions without the use of additional air ejection. [..]
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NOVÁK Vlastimil VSB -Technical University of Ostrava, Ostrava, Czech Republic, EU, vlastimil.novak@vsb.cz
Co-authors:
ŘEHÁČKOVÁ Lenka
ROSYPALOVÁ Silvie
MATÝSEK Dalibor
SMETANA Bedřich
TKADLEČKOVÁ Markéta
SNIEGOŇ Michal
VÁŇOVÁ Petra
KONEČNÁ Kateřina
DROZDOVÁ Ľubomíra
DOI: https://doi.org/10.37904/metal.2021.4078, 133-139
Abstract:
This investigation was carried out to determine the wetting characteristics of low alloy steel grades that contained, among other elements, chromium around 5 wt.% and oxygen up to approximately 400 ppm. The tests were performed from the melting temperature to a temperature of 1,600 °C using a high-temperature observation furnace CLASIC operating under non-oxidizing conditions. [..]
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KOVÁŘ Ladislav VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Ostrava, Czech Republic, EU, ladislav.kovar@vsb.cz, pavel.novak.st1@vsb.cz, tomas.hapla@vsb.cz, jaroslav.melecky@vsb.cz
Co-authors:
NOVÁK Pavel
HAPLA Tomáš
MELECKÝ Jaroslav
DOI: https://doi.org/10.37904/metal.2021.4079, 140-146
Abstract:
When designing blowing systems for a high-temperature reactor, we can primarily use mathematical tools that allow us to determine the state quantities of the flowing medium using a calculation. In many cases, however, it is necessary to verify these calculated quantities, e. [..]
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