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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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MAREŠ Vratislav Center of Advanced Innovation Technologies - VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava-Poruba, Czech Republic, EU: vratislav.mares@vsb.cz
Co-authors:
BYSTRIANSKÝ Jaroslav
BYSTRIANSKÝ Václav
PODEPŘELOVÁ Adéla
KRAUS Martin
Abstract:
The paper deals with the corrosion behavior of steels with reduced effective chromium content in the matrix, with the intent to estimate their long-term behavior in low aggressive environments, typical for the secondary and primary circuits of nuclear power plants. Materials for this research were steels with varying characteristics of influence of effective chromium content precipitation of chromium carbides or spinodal breakdown of chromium / martensitic steels, creating other types of chromium-rich phases, e.g. [..]
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MARYNOWSKI Przemysław AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland, EU, pmarynow@agh.edu.pl
Co-authors:
GŁOWACKI Mirosław
ADRIAN Henryk
WOŹNY Krzysztof
KOCLĘGA Damian
Abstract:
Microalloying elements Ti, Nb, V, entered into steel they influence their microstructure and mechanical properties, because formation of carbonitrides, M (C, N), which in the high temperature inhibit the austenite grains growth and during the cooling of the austenite form fine precipitates giving the dispersion precipitation effect in ferrite. Influence of carbonitrides to the microstructure and mechanical properties depends on their basic stereological parameters: volume fraction, VV, and their size, r. [..]
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MAZANCOVÁ Eva VŠB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Tř. 17. listopadu 15/ 2172, 708 33 Ostrava, Czech Republic, EU, eva.mazancova@vsb.cz
Co-authors:
KUČERA Pavel
Abstract:
Work is aimed at three laboratory manufactured high strength manganese steels after cast, rolling and aging process (at 500 °C after 6, 12, 30 and/or 60 minutes of dwell). Micro-hardnesses (HV0.2) as well as potential k-carbides formation of micro- and/or nano-size and microstructures characters of all treatment modes are mutually compared. [..]
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MUNTEANU Daniel Transilvania University of Brasov, Department of Materials Science, 29 Eroilor Blvd., 500036, Brasov, Romania, EU, danielmunteanu@unitbv.ro
Co-authors:
BEDO Tibor
POP Mihai Alin
MILOSAN Ioan
GABOR Camelia
GHIUTA Ioana
MUNTEANU Sorin
CRISTEA Dan
Abstract:
Induction quenching can be used for hardening the outer surface of large parts, achieving superior mechanical properties, with the advantage that heating is not required to the whole part. Induction heating is a complex combination of electromagnetic, heat transfer, and metallurgical phenomena involving factors such as: current, voltage, frequency, applied power, scanning speed, heating period, and many more. [..]
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MUSIL Vaclav VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, vaclav.musil@vsb.cz
Co-authors:
SADILEK Marek
CEP Robert
CEPOVA Lenka
KRATOCHVIL Jiri
KUSNIR Lukas
Abstract:
The article deals with the evaluation of the functional surfaces of the ball valve body. It deals with the finishing methods when machining parts of the ball valve assembly. [..]
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NIKITIN Ivan Belgorod National Research University, Belgorod 308015, Russia, fedoseeva@bsu.edu.ru
Co-authors:
FEDOSEEVA Alexandra
DUDOVA Nadezhda
KAIBYSHEV Rustam
Abstract:
The effect of heat treatment on the microstructure and mechanical properties of a (in wt. %) 10 Cr-3Co-3W-0.2Re martensitic steel was investigated. [..]
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PAGÁČ Marek VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, marek.pagac@vsb.cz, jiri.hajnys@vsb.cz, sarka.malotova@vsb.cz, tomas.zlamal@vsb.cz, jana.petru@vsb.cz
Co-authors:
HAJNYŠ Jiří
MALOTOVÁ Šárka
ZLÁMAL Tomáš
PETRŮ Jana
Abstract:
The subject of the paper is finding optimal setting of the laser power for the utility properties of the surface roughness parameter in the Additive technology by SLM method for differently large overhangs. The overhangs created on the sides, which are not supported by a supporting structure and are not designed in any way for printing by Additive technology. [..]
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PORNPIBUNSOMPOP Tosapolporn Metallurgical and Materials Engineering Laboratory, Defence Technology Institute (Public organization), Nonthaburi, THAIALAND, tosapolporn.p@dti.or.th
Abstract:
The objective of this research is to investigate the effect of extension rate on tensile properties of AISI 4140 steel. The steel was supplied by local vendor in Thailand and its use for some military product. [..]
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RozumovÁ lucia Centrum Vyzkumu Rez s.r.o., Husinec-Rez, Czech Republic, EU, lucia.rozumova@cvrez.cz
Co-authors:
HojnÁ Anna
Di Gabriele Fosca
Chocholoušek Michal
Špirit Zbyněk
Abstract:
The development of Generation IV nuclear reactors and accelerator driven systems (ADS) is supporting a wide range of work on the compatibility of stainless steels with heavy liquid metals (HLM).The austenitic steel DIN 1.4970 (also known as 15-15Ti) is being qualified for use in heavy liquid metals because of its lack of sensitivity to Liquid Metal Embrittlement. The aim of this study is to look into cracking modes and their main characteristics in order to reach a clear idea of mechanisms.Flat tensile, tapered specimens were loaded in PbBi at 300 °C with low oxygen content and, for comparison in air, up to the Ultimate Tensile Stress, UTS, point and rupture. [..]
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ROŽNOVSKÁ Gabriela Materiálový a metalurgický výzkum, Ostrava, Czech Republic, EU, gabriela.roznovska@mmvyzkum.cz
Co-authors:
VODÁREK Vlastimil
KUBOŇ Zdeněk
Abstract:
Steel MLX 17 (X1CrNiMoAlTi 12-11-2) belongs to a family of martensitic precipitation-hardening steels for use in demanding applications in aviation and offshore oil and gas industry. The unique combination of high strength, toughness, fatigue strength and corrosion resistance is obtained in this steel based on 11 % Ni, 12 % Cr and precipitation hardened by Mo, Al and Ti after ageing of low carbon martensite above 500 °C. [..]
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ŘEHOŘEK Jakub VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, vlastimil.vodarek@vsb.cz
Co-authors:
VODÁREK Vlastimil
KUBOŇ Zdeněk
Abstract:
Modern blocks of fossil fuel power plants designed for steam temperatures above 600 °C require advanced stainless steels in superheater or reheater systems. Great attention is paid to the exploitation of new steel grades with higher material properties. [..]
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SATERNUS Zbigniew Czestochowa University of Technology, Institute of Mechanics and Machine Design Foundations, Czestochowa, Poland, EU, saternus@imipkm.pcz.pl, piekarska@imipkm.pcz.pl
Co-authors:
PIEKARSKA Wiesława
Abstract:
The paper concerns numerical modeling of single-side T-joint welding using the laser beam. The purpose of performed analysis is the determination of the temperature field in the welded joint, stress state and the estimation of welding deformation. [..]
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SKOWROŃSKA Beata Warsaw University of Technology, Institute of Manufacturing Technologies, 85 Narbutta Str. 02-524 Warsaw, Poland, EU
Co-authors:
SZULC Jacek
CHMIELEWSKI Tomasz
SAŁACIŃSKI Tadeusz
ŚWIERCZ Rafal
Abstract:
The purpose of this paper is to describe the microstructure of welded joints produced by the Plasma+MAG method of S700 MC steel (high strength Re = 700 MPa). Welded joints of thermomechanical steel have been made with different values of heat input. [..]
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SOZAŃSKA-JĘDRASIK Liwia Silesian University of Technology, Gliwice, Poland, EU, liwia.sozanska-jedrasik@polsl.pl, janusz.mazurkiewicz@polsl.pl, wojciech.borek@polsl.pl
Co-authors:
MAZURKIEWICZ Janusz
BOREK Wojciech
KRAUS Martin
Abstract:
The paper presents the results of mechanical properties tests at reduced and elevated temperature after a four-stage hot-rolling and cooling in water, microstructure tests and fractographic studies of breakthroughs of high-strength high-manganese steel X98MnAlSiNbTi24-11 and X105MnAlSi24-11 TRIPLEX type. In order to determine the mechanical properties of the tested steels, a static tensile test was performed, on the basis of which the yield strength, tensile strength and elongation were determined. [..]
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SROKA Marek SilesianUniversity of Technology, Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Gliwice, Poland, EU, marek.sroka@polsl.pl
Co-authors:
ZIELIŃSKI Adam
JONŠTA Zdeněk
JONŠTA Petr
Abstract:
The Inconel 617 alloy is used in the construction of boiler pressure elements with ultra-supercritical performance parameters. The paper presents the results of microstructure testing after 10,000 h ageing at 750 °C. [..]
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Stejskalová Šárka Material and Metallurgical Research Ltd., Ostrava, Czech Republic, EU, sarka.stejskalova@mmvyzkum.cz
Co-authors:
Kander Ladislav
Čížek Petr
Filip Miroslav
Abstract:
The paper deals with the possibility of using the SPT - (small punch test) method for evaluation of material properties of the individual areas of welded joints. The homogeneous and heterogeneous welds for USC power plants were assessed. [..]
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STRADOMSKI Grzegorz Technical University of Czestochowa, Faculty of Production Engineering and Materials Technology, Institute of Plastic Forming Processes and Safety Engineering, Armii Krajowej 19 av., 42-200 Częstochowa, Poland,EU, gstradomski@wip.pcz.pl, magdalena.ptak@onet.pl, nadolski.maciej@wip.pcz.pl
Co-authors:
KRUPOP Magdalena
JAKUBUS Aneta
NADOLSKI Maciej
Abstract:
The continuous increase in the demand for electricity, the need to increase the power and of power units, efficiency causes the development and researches of dedicated materials. These materials work in extremely harsh conditions, they must be resistant to high temperatures, sudden changes of temperature and deformation. [..]
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SZOTKOWSKI Tomáš Faculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic, EU, tomas.szotkowski.st1@vsb.cz, ivan.mrkvica@vsb.cz
Co-authors:
MRKVICA Ivan
Abstract:
The article deals with the design of a vehicle dismantling component. It is the front axle of the SUV, with a 4 x 4 drive produced by Brembo. [..]
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ŠMÁTRALOVÁ Magdalena MATERIAL AND METALLURGICAL RESEARCH (Ltd.), Pohraniční 693/31, Vítkovice, 703 00 Ostrava, Czech republic, EU magdalena.smatralova@mmvyzkum.cz, jana.kosnovska@mmvyzkum.cz
Co-authors:
KOSŇOVSKÁ Jana
Abstract:
The paper deals with the effect of heat treatment parameters on mechanical properties and microstructure of low alloy high-strength steel 55 Cr3. The material standard of this steel defines the hardening temperature interval from 830 to 850 °C, which brings about the question of minimum soaking time in order to dissolve carbide particles and to homogenize austenite before quenching. [..]
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TOMÁŠEK Radek Center of Advanced Innovation Technologies - VŠB-Technical University of Ostrava, 17. listopadu 15, 708 00, Ostrava-Poruba, Czech Republic, tomasek.radek@vsb.cz
Co-authors:
PODEPŘELOVÁ Adéla
HORSÁK Lukáš
MAREŠ Vratislav
Abstract:
Compression helical springs operate frequently under varying loads and deflections. High strength steels are typically used by the manufacturers, but high UTS value should not degrade toughness and fatigue resistance, which can be achieved by control of steel composition and proper heat treatment. [..]
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