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Conference Proceedings - METAL 2020
29th International Conference on Metallurgy and Materials
May 20 - 22, 2020 / Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-97-0
Proceedings of the conference were published in Web of Science and Scopus.
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KUBOŇ Zdeněk MATERIAL AND METALLURGICAL RESEARCH Ltd., Ostrava, Czech Republic, EU, creep.lab@mmvyzkum.cz
DOI: https://doi.org/10.37904/metal.2020.3512, 512-517
Abstract:
The paper deals with the small punch testing of material properties including short-term creep resistance and microstructure analysis a thick-walled pipe made of P92 steel, where metallographic analysis revealed numerous internal defects, especially close to the inner surface of the pipe. These defects had their origin in the shrinkage porosity of the continuously cast slab and remained in the microstructure probably due to insufficient deformation during pipe rolling. [..]
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AMBROŽ Ondřej Institute of Scientific Instruments of the CAS, Brno, Czech Republic, EU, ondrej@isibrno.cz
Co-authors:
MIKMEKOVÁ Šárka
HEGROVÁ Veronika
AOYAMA Tomohiro
DOI: https://doi.org/10.37904/metal.2020.3513, 518-522
Abstract:
Modern scanning electron microscopy (SEM) allows observations of specimens with high surface sensitivity. The surface sensitivity is significantly affected by the accelerating voltages. [..]
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BELYAEV Igor Vladimir State University named after A.G. and N.G. Stoletovs, Vladimir, Russian Federation, belyaev-iv54@yandex.ru
Co-authors:
SEROV Dmitry
KIREEV Andrey
KUTEPOV Alexandr
LYUKHTER Alexandr
ZHOKIN Alexey
RYKOV Vladimir
KOLCHUGINA Natalia
DOI: https://doi.org/10.37904/metal.2020.3514, 523-526
Abstract:
The possibility of laser cutting of rare-earth NdFeB permanent magnets is studied. An industrial Navigator KS-5VDM1-3 laser complex (VNITER, Russia) is used. [..]
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MARTÍNEK Petr COMTES FHT a.s., Dobřany, Czech Republic, EU, petr.martinek@comtesfht.cz
Co-authors:
PODANÝ Pavel
DOI: https://doi.org/10.37904/metal.2020.3515, 527-532
Abstract:
A manufacturer of crankshafts uses steel stock purchased from several vendors. The steels differ in their behaviour during the manufacture of the crankshaft, although they are the same grade. [..]
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MIKMEKOVÁ Šárka ISI Brno, Czech Academy of Sciences, Brno, Czech Republic, EU, sarka@isibrno.cz
Co-authors:
AMBROŽ Ondřej
HEGROVÁ Veronika
AOYAMA Tomohiro
DOI: https://doi.org/10.37904/metal.2020.3516, 533-538
Abstract:
The paper aims to demonstrate a modern scanning electron microscope (SEM) as a powerful tool for visualization of the secondary phases in TRIP steel. The TRIP steel specimens prepared by various metallographic techniques were imaged by the SEM and the secondary phases presence was confirmed by an electron back-scattered diffraction (EBSD) technique. [..]
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BRÁZDA Michal COMTES FHT - Dobřany, Czech Republic, EU, mbrazda@comteshft.cz
Co-authors:
SALVETR Pavel
DLOUHÝ Jaromír
VAVŘÍK Jaroslav
DOI: https://doi.org/10.37904/metal.2020.3517, 539-544
Abstract:
This work focuses on the effect of laser power on the proportion of austenite and ferrite in duplex steel SAF 2507. Duplex steels combine the advantages of ferritic and austenitic steels, preferably with an optimal proportion of austenite and ferrite. [..]
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KURBATOV Andrey D. Mendeleev University of Chemical Technology of Russia, 125047, Moscow, Miusskaya pl. 9, Russia, andreikurbatov@yandex.ru
Co-authors:
AVERINA Julia
KUZIN Evgenii
TSEVKOVA Victoria
MOISEEVA Nadezhda
DOI: https://doi.org/10.37904/metal.2020.3518, 545-548
Abstract:
More and more attention is being paid to non-destructive testing of connecting elements. Currently, ultrasound control is widely used. [..]
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IGOSHIN Sergei Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russian Federation, sergei.igosshin@gmail.com
Co-authors:
MASAYLO Dmitriy
KIM Artem
POPOVICH Anatoliy
DOI: https://doi.org/10.37904/metal.2020.3519, 549-554
Abstract:
The NiTi alloy shape memory effect can have a much larger field of application in industry and everyday life than it is now. The high cost of obtaining this material and the laboriousness of the process limit its scope of application. [..]
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Šmátralová Magdalena MATERIÁLOVÝ A METALURGICKÝ VÝZKUM s. r. o., Pohraniční 693/31, 703 00, Ostrava - Vítkovice, Czech Republic, EU, magdalena.smatralova@mmvyzkum.cz, petr.cizek@mmvyzkum.cz, ladislav.kander@mmvyzkum.cz
Co-authors:
Čížek Petr
Kander Ladislav
DOI: https://doi.org/10.37904/metal.2020.3520, 555-560
Abstract:
The National Action Plan for the Development of Nuclear Energy in the Czech Republic envisages the preparation for the construction of two new blocks of the nuclear power plant in the location of Dukovany and the location of Temelín. Although the final supplier of these units is not clear yet, there are good prospects that some components could be produced by the local producers. [..]
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MAZANCOVÁ Eva VŠB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. listopadu 15/ 2172, 708 33 Ostrava, Czech Republic, EU, eva.mazancova@vsb.cz
Co-authors:
KUČERA Pavel
DOI: https://doi.org/10.37904/metal.2020.3492, 561-566
Abstract:
Paper deals with tool steel of QRO90 Supreme type that was treated by four different heat treatments. Firstly only laser quenched, afterwards laser quenched with followed-up plasma nitridation, the third material was only nitrided by plasma and the last one was nitrided by plasma and subsequently laser quenched. [..]
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MAKAREVIČIUS Vidas Lithuanian Energy Institute, Breslaujos st.3, Kaunas, LT-44403 Lithuania, Vidas.Makarevicius@lei.lt
Co-authors:
BALTUŠNIKAS Arūnas
LUKOŠIŪTĖ Irena
KRIŪKIENĖ Rita
GRYBĖNAS Albertas
DOI: https://doi.org/10.37904/metal.2020.3521, 567-572
Abstract:
Ferritic-martensitic heat-resistant steels are used for high-temperature service applications in power plants and the petrochemical industry due to its high strength and creep properties at high temperatures. After the long-term operation under, structural changes are taking place, such as coarsening of precipitates and migration of alloying elements within carbides, leading to M23C6 carbide lattice expansion. [..]
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BEHRENS Bernd-Arno Institute of Forming Technology and Machines, An der Universität 2, 30823 Garbsen, Germany, EU
Co-authors:
BRUNOTTE Kai
WESTER Hendrik
MÜLLER Felix
DOI: https://doi.org/10.37904/metal.2020.3522, 573-578
Abstract:
Due to the efficient combination of a forming step with a consecutive heat treatment, hot-stamping has become an established technology for the production of high strength steel parts in the automotive industry. In the beginning, sheets are heated above austenitisation temperature and held in order to obtain a fully austenised microstructure, then formed and instantly quenched in the forming tool. [..]
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BEHRENS Bernd-Arno Institute of Forming Technology and Machines, Leibniz Universität Hannover, 30823 Garbsen, Deutschland
Co-authors:
BRUNOTTE Kai
WESTER Hendrik
STOCKBURGER Eugen
DOI: https://doi.org/10.37904/metal.2020.3523, 579-584
Abstract:
Due to their high tensile strengths increasing the crashworthiness of the vehicles, ultra-high strength steels are increasingly used in the automotive industry, for example in components like B-pillars or tunnel. 22MnB5 is a premier candidate for this cause, since it can be press-hardened and phase-transformed into the martensitic phase, resulting in high hardness and tensile strength. [..]
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PIKUŁA Janusz Łukasiewicz Research Network – Institute of Welding, Gliwice, Poland, EU, janusz.pikula@is.gliwice.pl
Co-authors:
PFEIFER Tomasz
DOI: https://doi.org/10.37904/metal.2020.3524, 585-590
Abstract:
The prevention of welding distortions is one of the most important and, at the same time, most difficult issues in welding engineering. The above-named distortions result from the combined effect of the shrinkage of solidifying weld metal and the shrinkage occurring in the partially melted zone (primarily in the HAZ). [..]
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SIWIEC Dominika Rzeszow University of Technology, Rzeszow, Poland, EU, d.siwiec@prz.edu.pl, ORCID ID: 0000-0002-6663-6621
Co-authors:
DWORNICKA Renata
PACANA Andrzej
DOI: https://doi.org/10.37904/metal.2020.3525, 591-596
Abstract:
The micro-alloyed steel 38MnVS6 (38MnSiVS5 or 38MnVS5) applied mostly in the automotive industry (for example production of forgings), has a high yield point and relatively good wear resistance. Aim of the study was preliminary to analyse the influence of twice the normalization process of micro-alloyed steel 38MnVS6 on its microstructure and mechanical properties. [..]
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ČÍŽEK Petr MATERIAL AND METALLURGICAL RESEARCH Ltd., Ostrava, Czech Republic, EU, petr.cizek@mmvyzkum.cz
Co-authors:
KANDER Ladislav
DOI: https://doi.org/10.37904/metal.2020.3526, 597-602
Abstract:
Structural steel 34CrMo4 is frequently used for producing of hydrogen cylinders. For selecting material of cylinder is very important to know fatigue and fracture behavior of material directly in hydrogen environment, especially from the point of view of safety during operation. [..]
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KWIECIŃSKI Krzysztof Łukasiewicz – Institute of Welding, Gliwice, Poland, EU, krzysztof.kwiecinski@is.gliwice.pl
Co-authors:
URZYNICOK Michał
FERRARA Antonella
BARSAN Valentina
DOI: https://doi.org/10.37904/metal.2020.3527, 603-608
Abstract:
Very popular and highly employed steel grades such as the 9 % Cr CSEF steels are limited in terms of service temperature mainly due to capping their steam oxidation resistance capabilities at temperature levels, required by the drive for efficiency increase. For heat-exchangers manufactured from conventional materials, the formation, growth and spallation of oxide scale on the steam side may eventually impair plant operations and damage other downstream components. [..]
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ONISZCZUK-ŚWIERCZ Dorota Warsaw University of Technology, Faculty of Production Engineering, EU, doo@meil.pw.edu.pl
Co-authors:
ŚWIERCZ Rafał
CHMIELEWSKI Tomasz
SAŁACIŃSKI Tadeusz
DOI: https://doi.org/10.37904/metal.2020.3567, 610-616
Abstract:
Wire electrical discharge machining (EDM) is a modern technology that is widely used in the production of difficult to cut conductive materials. Stochastic nature of electrical discharges causing to difficult to identify the influence WEDM parameters on surface roughness and dimensional accuracy of machining parts. [..]
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DOBROCKÝ David University of Defense in Brno, Brno, Czech Republic, EU, david.dobrocky@unob.cz
Co-authors:
POKORNÝ Zdeněk
STUDENÝ Zbyněk
JOSKA Zdeněk
PROCHÁZKA Jiří
SVOBODA Emil
DOI: https://doi.org/10.37904/metal.2020.3568, 617-626
Abstract:
The current development of chemical-heat treatment technologies is aimed at increasing the utility properties of components and improving the quality of the produced surface. A prerequisite for a quality produced surface is the selection of a suitable method of surface machining before the application of chemical-heat treatment technology. [..]
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LUDVÍK Jakub University of Chemistry and Technology Prague, Department of Metals and Corrosion Engineering, Prague, Czech Republic, EU, Jakub.Ludvik@vscht.cz
Co-authors:
LOVAŠI Tomáš
ŽOFKOVÁ Zuzana
KOUŘIL Milan
DOI: https://doi.org/10.37904/metal.2020.3536, 627-631
Abstract:
Stainless steels are promising materials for fuel cell bipolar plates. It meets high demands for bipolar plates, good thermal and electrical conductivity, low cost, good mechanical properties. [..]
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