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Conference Proceedings - METAL 2017
26th International Conference on Metallurgy and Materials
May 24th - 26th 2017 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-79-6
Proceedings of the conference were published in Web of Science and Scopus.
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FALKUS Jan AGH University of Science and Technology, Krakow, Poland, EU
Co-authors:
DROŻDŻ Paweł
Abstract:
Vacuum metallurgy processes are now the primary processes of manufacturing new metallic materials. Requirements concerning product purity and accuracy in determining chemical composition constitute a huge challenge arising from the needs of new technologies. [..]
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BERNHARD Michael Chair of Ferrous Metallurgy, Montanuniversitaet Leoben, Leoben, Austria, EU, michael.bernhard@unileoben.ac.at
Co-authors:
PRESOLY Peter
BERNHARD Christian
SIX Jakob
ILIE Sergiu
Abstract:
Microsegregation in general is the consequence of the different solubility of alloying and residual elements in liquid and solid steel. The result is an enrichment of segregating elements between the dendrites due to incomplete diffusion equalization. [..]
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PREULER Lukas K1-MET GmbH, Linz, Austria, EU, lukas.preuler@k1-met.com
Co-authors:
BERNHARD Christian
ILIE Sergiu
SIX Jakob
Abstract:
In the secondary cooling zone of the continuous casting process water-air nozzles are used to cool down the strand. The cooling has to be sufficient enough to ensure a certain shell thickness and finally the complete solidification of the material. [..]
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MAUDER Tomáš Brno University of Technology – Faculty of Mechanical Engineering, Brno, Czech Republic, EU, {mauder, stetina, klimes}@fme.vutbr.cz
Co-authors:
ŠTĚTINA Josef
KLIMEŠ Lubomír
MASARIK Miloš
Abstract:
Optimal regulation algorithms and complex numerical simulations are utilized in contemporary production processes. High quality of products, minimum of scrap, and reduction of carbon footprint are current trends in industry processes including the continuous casting process of steel. [..]
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SMETANA Bedřich Department of Physical Chemistry and Theory of Technological Processes, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, Ostrava-Poruba, 708 33, bedrich.smetana@vsb.cz
Co-authors:
ZLÁ Simona
KAWULOKOVÁ Monika
DROZDOVÁ Ľubomíra
DOBROVSKÁ Jana
KALUP Aleš
ŘEHÁČKOVÁ Lenka
ROSYPALOVÁ Silvie
STROUHALOVÁ Michaela
MICHALEK Karel
JONŠTA Petr
SUŠOVSKÝ Michal
Abstract:
The paper deals with the study of key thermophysical properties - phase transition temperatures (liquidus, peritectic transformation and solidus) with use of DTA (Differential Thermal Analysis) and “direct” thermal analysis (TA). Results obtained with these two very often used methods at heating and cooling process are presented. [..]
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DROZDOVÁ Ľubomíra Department of Physical Chemistry and Theory of Technological Processes, VŠB-Technical University of Ostrava, 17. listopadu 15, Ostrava-Poruba, 708 33, Czech Republic, EU lubomira.drozdova@vsb.cz; bedrich.smetana@vsb.cz
Co-authors:
SMETANA Bedřich
ZLÁ Simona
KALUP Aleš
KAWULOKOVÁ Monika
ROSYPALOVÁ Silvie
ŘEHÁČKOVÁ Lenka
VONTOROVÁ Jiřina
STROUHALOVÁ Michaela
Abstract:
Three alloys based on Fe-C-Cr were studied. These alloys contained carbon in a range of 0.31 – 0.38 wt.% and chrome 1.06 – 4.99 wt.%. [..]
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SAUCEDO-ZENDEJO Félix Raymundo Division of Postgraduate Studies and Research, The Technological Institute of Saltillo,- Blvd. V. Carranza 2400 Col. Tecnolóogico C.P. 25280, Saltillo, Coahuila, México, feliks@live.com.mx
Co-authors:
RESÉNDIZ-FLORES Edgar Omar
Abstract:
In this work we propose a novel way to simulate solidification during continuous processes using a Generalized Finite Difference Method (GFDM). The meshfree nature of this approach gives the advantage of naturally capture the motion and phase boundaries reconstruction without the need of adaptive remeshing algorithms. [..]
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CHABIČOVSKÝ Martin Brno University of Technology, Faculty of Mechanical engineering, Brno, Czech Republic, EU
Co-authors:
HORSKÝ Jaroslav
Abstract:
The spray cooling is a common cooling method in the steel industry (continuous casting, hot rolling, product cooling or heat treatment). The water is sprayed on the hot surface by the nozzle which transforms the water stream into droplets. [..]
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SMOLJAN Božo University of Rijeka, Faculty of Engineering, 51000 Rijeka, Croatia, EU
Co-authors:
ILJKIĆ Dario
POMENIĆ Loreta
SMOKVINA HANZA Sunčana
ŠTIC Lovro
BORIĆ Andrej
Abstract:
The mathematical model and computer simulation for prediction of mechanical properties of cast steel was developed. Because of wide range of applicability and ease of use of finite volume method (FVM), this numerical method was suitable to create integrated computer program for simulation of transient temperature field in process of solidification and cooling of casting.Distribution of hardness of cast steel has been predicted by conversion of calculated cooling times from 800 to 500 °C to the hardness. [..]
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STROUHALOVÁ Michaela VSB - Technical University of Ostrava, Ostrava, Faculty of Metallurgy and Materials Engineering, Department of Metallurgy and Foundry, and Regional Materials Science and Technology Centre Czech Republic, EU, 17. listopadu 2172/15, 708 33 Ostrava-Poruba, michaela.strouhalova@vsb.cz
Co-authors:
GRYC Karel
SMETANA Bedřich
MICHALEK Karel
SUŠOVSKÝ Michal
SVIŽELOVÁ Jana
Abstract:
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). [..]
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KALUP Aleš Faculty of Metallurgy and Materials Engineering, VŠB-Technical University of Ostrava, Ostrava, Czech Republic, EU, ales.kalup@vsb.cz
Co-authors:
DROZDOVÁ Ľubomíra
ZLÁ Simona
KAWULOKOVÁ Monika
STROUHALOVÁ Michaela
DOBROVSKÁ Jana
SMETANA Bedřich
Abstract:
Experimental and theoretical investigation of temperatures of phase transformations (temperature of liquidus TL, temperature of peritectic transformation TP, temperature of solidus TS, temperature of the end of αγ transformation Ac3, and temperature of the start of eutectoid transformation Ac1) of these alloys were experimentally measured. All investigated temperatures were also calculated by Thermo-Calc software. [..]
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KURKA Vladislav MATERIAL AND METALLURGICAL RESEARCH Ltd., Ostrava, Czech Republic, EU, vladislav.kurka@mmvyzkum.cz
Co-authors:
JONŠTA Petr
CARBOL Zdeněk
BAŽAN Jiří
SOCHA Ladislav
Abstract:
In MATERIAL AND METALURGICAL RESEARCH LtD. we made a proposal, manufacturing and verification of oxygen-nitrogen nozzle. [..]
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BHERO Shepherd Department of Chemical, Materials and Metallurgical Engineering, Botswana International University of Science and Technology
Co-authors:
MAVHUNGU Steven
Abstract:
High chromium iron castings have been observed to exhibit significantly varying mechanical properties. To establish the origin of inconsistencies in properties, the research was conducted in two phases. [..]
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BHERO Shepherd Department of Chemical, Materials and Metallurgical Engineering, Botswana International University of Science and Technology, bheros@biust.ac.bw
Co-authors:
NAVARA Erik
Abstract:
Three ferrous materials; Hadfield steel, high chromium white cast iron and austempered ductile iron (ADI) exhibit a similar phenomenon in which soft stabilised austenite transforms to hard martensite on the worked surface. This property is desirable in applications where toughness is required in the bulk of the component while the surface needs to be hard-wearing. [..]
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BIALIK Wojciech Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, Katowice, Poland, EU, wojciech.bialik@polsl.pl, stanislaw.gil@polsl.pl, boleslaw.machulec@polsl.pl
Co-authors:
GIL Stanisław
MACHULEC Bolesław
Abstract:
The most important physicochemical parameters of several selected carbons from Polish coal beds in the context of using them as a material in ferrosilicon smelting process were analysed in this paper. Among coals presented in the paper, coal from Wujek Coal Mine has been used as a main reducer in the Polish ferroalloy industry until recently, but its resources have run out. [..]
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BESTA Petr VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, petr.besta@vsb.cz
Co-authors:
ČECH Martin
Abstract:
The blast furnace process can be negatively affected by a number of harmful elements. These may interfere with the course of the technological process, but can also increase production costs. [..]
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ZLÁ Simona VŠB-TUO, Faculty of Metallurgy and Materials Engineering (FMME), Ostrava, Czech Republic, EU, simona.zla@vsb.cz
Co-authors:
KAWULOKOVÁ Monika
DROZDOVÁ Ľubomíra
SMETANA Bedřich
DOBROVSKÁ Jana
VONTOROVÁ Jiřina
VÁŇOVÁ Petra
JANALÍKOVÁ Veronika
Abstract:
This paper deals with the influence of the experimental conditions settings of the chosen DTA method on obtained data. The article is focused on the study of heating rate effect on shifting of liquidus temperature (TL) of Fe-CCr based systems (steels). [..]
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DULSKA Agnieszka Department of Foundry, Silesian University of Technology ul. Towarowa7, 44-100 Gliwice, Poland, agnieszka.dulska@polsl.pl
Co-authors:
SZAJNAR Jan
Abstract:
This article describes how to improve the tribological properties of cast iron by local strengthening by ceramic layer, directly in the casting process. The research comprised test molds with a ceramic (composite) layer. [..]
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DYDAK Artur The Specodlew Enterprise of Foundry Innovation Ltd., Skawina, Poland, EU, artur.dydak@specodlew.com.pl
Co-authors:
KURDZIEL Piotr
ZABA Krzysztof
PUCHLERSKA Sandra
SZWACHTA Grzegorz
Abstract:
The paper presents the influence of ceramic molds manufacturing parameters on the quality of small-scale castings produced by the lost wax method. Seven ceramic coatings were applied to the prepared model kits. [..]
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Garcia H. Jose Departamento de Ingeniería Metalúrgica, Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Coyoacan, Cd. de México 04510. Tel 0052 55 5622 5239, jagarcia@unam.mx
Co-authors:
Mayoga V. Alvaro.
Ruiz T. Agustín
Abstract:
This paper presents the results of the effect of Cr in the precipitation of carbides in nodular iron class 100-70-03. In this study was considered the average nominal chemical composition suggested by the ASTM standard and added with content between 0.5 to 3 %Cr. [..]
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