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Conference Proceedings - METAL 2018
27th International Conference on Metallurgy and Materials
May 23rd - 25th 2018 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-84-0
Proceedings of the conference were published in Web of Science and Scopus.
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NOVÁK Vlastimil Faculty of Metallurgy and Materials Engineering, VŠB-Technical University of Ostrava, Ostrava, Czech Republic, EU, vlastimil.novak@vsb.cz
Co-authors:
ŘEHÁČKOVÁ Lenka
SMETANA Bedřich
ROSYPALOVÁ Silvie
DROZDOVÁ Ľubomíra
LICHÝ Petr
RADKOVSKÝ Filip
KONEČNÁ Kateřina
LITSCHMANNOVÁ Martina
DOBROVSKÁ Jana
Abstract:
In this paper, the dependencies of density (ρ), surface tension (σ), and average wetting angles on temperature were investigated at three Fe - C - Cr model alloys where chromium content ranged from 0.92 to 4.76 wt%. All measurements were performed by sessile drop technique in a resistance furnace at temperatures from melting point up to 1600 °C. [..]
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NOWACKI Krzysztof Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, Katowice, Poland, EU, krzysztof.nowacki@polsl.pl
Co-authors:
LIS Teresa
KANIA Harald
ŁAKOMY Karolina
Abstract:
The article presents the results of research of iron content (II) and iron (III) in mill scale. The total content of iron was marked by the absorptive atomic spectroscopy, however the analysis of Fe content (II) and Fe (III) was carried out with the spectroscopy methods. [..]
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ZABA Krzysztof AGH University of Science and Technology, Krakow, Poland, EU, krzyzaba@agh.edu.pl
Co-authors:
PUCHLERSKA Sandra
PYZIK Jaroslaw
Abstract:
Computer-aided image recognition methods are non-invasive, easy to implement and quick to calculate defects detection methods. They seem to be a promising method for investment casting applications – defects can be detected in individual incestment casting processes, reducing the costs caused by defective castings.As part of the research, defects have been defined and described in wax models. [..]
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Řeháčková Lenka Faculty of Metallurgy and Materials Engineering, VŠB-Technical University of Ostrava, Ostrava, Czech Republic, EU, lenka.rehackova@vsb.cz
Co-authors:
NOVÁK Vlastimil
VÁŇOVÁ Petra
MATÝSEK Dalibor
SMETANA Bedřich
DROZDOVÁ Ľubomíra
VODÁREK Vlastimil
LICHÝ Petr
DOBROVSKÁ Jana
Abstract:
The presented paper is focused on the experimental study of the surface properties of selected commercial steels (three alloys based on Fe – C – Cr). The surface tension of given steels and their wetting with alumina substrate in the temperature interval from the melting point to the temperature of 1600 °C were determined using the sessile drop technique. [..]
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SVIŽELOVÁ Jana VŠB – Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Department of Metallurgy and Foundry, and Regional Materials Science and Technology Centre, Czech Republic, EU, jana.svizelova@vsb.cz, marketa.tkadleckova@vsb.cz, karel.michalek@vsb.cz
Co-authors:
TKADLEČKOVÁ Markéta
MICHALEK Karel
Abstract:
Currently, model study is commonly used part of research in field of metallurgical processes. Process of simulation of casting and solidification of steel ingots is no exception. [..]
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ZEGZULKA Jiří VSB - Technical University of Ostrava, ENET Centre, Bulk Solids Centre, 17.listopadu 15/2172, 708 33 Ostrava, Czech Republic, EU, jiri.zegzulka@vsb.cz
Co-authors:
JEZERSKÁ Lucie
HLOSTA Jakub
VALDEROVÁ Alice
NEČAS Jan
Abstract:
This paper deals with optimization of ferrite magnet production. The study is divided into two parts. [..]
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WARZECHA Marek Czestochowa University of Technology, Czestochowa, Poland, EU, warzecha.marek@wip.pcz.pl
Co-authors:
HUTNY M. Artur
DERDA Włodzimierz
Abstract:
The article presents research results performed to determine the size and shape of non-metallic inclusions, on different steel production stages, for steel grades intended for long products. The tests were carried out under industrial conditions during normal production cycle, while casting of carbon steel groups. [..]
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WARZECHA Marek Czestochowa University of Technology, Czestochowa, Poland, EU, warzecha.marek@wip.pcz.pl
Co-authors:
HUTNY M. Artur
MERDER Tomasz
Abstract:
In modern metallurgical processes, the mixing of a metal bath is a basic operation that allows achieving
a state of close chemical and thermal homogenization of liquid steel after the insertion of the alloy addition. Mixing also increases the efficiency of removing non-metallic inclusions. [..]
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ŻABA Krzysztof AGH University of Science and Technology, Krakow, Poland, EU, krzyzaba@agh.edu.pl, maciejbalcerzak1@gmail.com, spuchler@agh.edu.pl
Co-authors:
NAWROCKI Jacek
BALCERZAK Maciej
PUCHLERSKA Sandra
Abstract:
Due to the specific requirements for monitoring processes and products in the aircraft industry, non-destructive testing (NDT) is increasingly used in combination with advanced statistical analysis.The paper presents the results of research aimed at determining the quality of wax models and multi-layered ceramic forms, used for precise casting of critical parts of aircraft engines. Studies on the shape and dimensions of wax models and ceramic moulds were made by 3D scanning using the GOM ATOS CORE 200 scanner. [..]
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STROUHALOVÁ Michaela VSB - Technical University of Ostrava and Regional Materials Science and Technology Centre, Czech Republic, EU, michaela.strouhalova@vsb.cz
Co-authors:
GRYC Karel
MICHALEK Karel
ZLÁ Simona
Abstract:
Metallurgical processes of steel production are strongly connected with knowledge of the thermo-physical and thermodynamic properties of liquid metal during individual technological steps. Critical factors describing behaviour of steel in the process of its solidification and then important to a correct setting of conditions
of steel casting and solidification of steel, which significantly affect the final quality of the as-cast steel, are liquidus (TL) and solidus (TS) temperatures.Experimental determination of these temperatures (or generally additional phase transformation temperatures) can lead to the refinement of all these phase transformation temperatures as well as to
a more precise determination of the interval of steels’ solidification. [..]
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JABŁOŃSKA Magdalena Barbara Silesian University of Technology, Katowice, Poland, EU, magdalena.jablonska@polsl.pl
Abstract:
High Mn steels is a new type of structural steels, characterised by both high strength and superior formability. The one of this is TWIP steel offers an remarkable opportunity to adjust the mechanical properties modifying the strain hardening. [..]
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KAWULOK Rostislav VSB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17 listopadu 15, 708 33 Ostrava - Poruba, Czech Republic, EU, rostislav.kawulok@vsb.cz, petr.kawulok@vsb.cz, ivo.schindler@vsb.cz, dan.plevak.st@vsb.cz, ladislav.kisac.st@vsb.cz, petr.opela@vsb.cz
Co-authors:
KAWULOK Petr
SCHINDLER Ivo
PLEVÁK Dan
KIŠAC Ladislav
TUROŇ Rostislav
OPĚLA Petr
Abstract:
The aim of the contribution is creation of transformation diagrams of hypoeutectoid 25CrMo4 steel that is used for tube production for the OCTG (Oil Country Tubular Goods) industry. For a comparison purpose,
the CCT diagrams with and even without influence of previous deformation were assembled. [..]
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BEHRENS Bernd-Arno Institute of Forming Technology and Machines (IFUM), Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany, EU, behrens@ifum.uni-hannover.de, brunotte@ifum.uni-hannover.de, bohr@ifum.uni-hannover.de
Co-authors:
BRUNOTTE Kai
BOHR Dieter
Abstract:
In order to achieve an economical forming technology production, a well-developed lubrication technology is generally required. Within the scope of this work, further investigations on a novel self-lubricating forming process are presented. [..]
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MORAVEC Jan University of Zilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Zilina, Slovak Republic, EU, jan.moravec@fstroj.uniza.sk
Abstract:
The paper deals with the unconventional way of making thin-walled circumferential rings produced by classical technology. The essence of the phenomenon is induction. [..]
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ANDREYACHSHENKO Violetta Karaganda State Industrial University, Temirtau, Republic of Kazakhstan, Vi-ta.z@mail.ru
Co-authors:
ASHKEYEV Zhassulan
KEMPNY Michal
Abstract:
The article presents the results of a study of the stress-strain state of workpieces after severe plastic deformation performed in a closed die. The stress state study was performed by the slip lines method and in the Deform 3D simulation software. [..]
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PESIN Alexander Nosov Magnitogorsk State Technical University, Magnitogorsk, , Russia, pesin@bk.ru
Co-authors:
CHUKIN Mikhail
TANDON Puneet
PUSTOVOITOV Denis
DRIGUN Ernst
PESIN Ilya
KOZHEMYAKINA Anna
Abstract:
Manufacturing steel complex figurine parts remains a fundamental scientific challenge. This article suggests the solution of using hybrid methods that unite processes like combined rolling/stamping, rolling/plastic bending, and asymmetric rolling to produce steel complex figurine parts with wall thickness of 40-100 mm and diameter (width) up to 4000 mm. [..]
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SARAY Onur Bursa Technical University, Dept. of Mechanical Engineering, Bursa, Turkey, onur.saray@btu.edu.tr
Co-authors:
YILMAZ Mumin
OZTURK YILMAZ Imren
Abstract:
In this study, effects of Friction Stir Processing (FSP) on the deformation behavior of Dual Phase (DP600) steel sheets under static and cyclic loading were investigated. Fatigue tests were performed at a frequency of 15 Hz during repeated tension at a cycle asymmetry R = 0 and 106 loading cycles. [..]
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RUDSKOI Andrei Peter the Great St.Petersburg Polytechnic University, St.Petersburg, Russia, gkodzhaspirov@gmail.com
Co-authors:
KODZHASPIROV Georgii
Abstract:
The effect of High-Temperature Thermomechanical Processing (HTMP) on the structure and mechanical properties of austenitic-ferritic steel has been studied. The dislocation structure observed in austenitic-ferritic stainless steels gave evidence that HTMP affected the strengthening and softening behaviour. [..]
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DZIEDZIC Michał AGH University of Science and Technology, Kraków, Poland, dziedzic@agh.edu.pl
Co-authors:
TURCZYN Stanisław
KUŹMIŃSKI Zbigniew
MICHAŁOWSKI Mirosław
Abstract:
One of the most important causes of steel sections failures are the residual stresses. They are those stresses that are locked in the profiles without of application of any service or internal loads. [..]
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KAWULOK Petr VSB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17 listopadu 15, 708 33 Ostrava - Poruba, Czech Republic, EU, petr.kawulok@vsb.cz, dalibor.lelkes.st@vsb.cz, ivo.schindler@vsb.cz, rostislav.kawulok@vsb.cz
Co-authors:
LELKEŠ Dalibor
SCHINDLER Ivo
TUROŇ Rostislav
JURČA Radek
KAWULOK Rostislav
Abstract:
With using of anizothermal plain strain compression tests, which were performed on the Hot Deformation Simulator HDS-20, the physical simulation of rolling and following cooling of seamless tubes from steel 42CrMo4 was performed. The aim was to simulate the thermomechanical conditions during piercing as well as rolling in a pilger mill of the seamless tubes with the final diameter of 273 mm (with the wall thickness of 6.3, 20 and 40 mm) and evaluate the influence of the finish rolling temperatures (chosen in the range from 820 to 970 °C) on microstructural and mechanical properties of the investigated steel. [..]
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