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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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KULOVÁ Taťána VŠB – Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Ostrava, Czech Republic, EU, tatiana.kulova@vsb.cz
Co-authors:
SOJKA Jaroslav
VÁŇOVÁ Petra
SOZAŃSKA Maria
Abstract:
The presented paper is devoted to the comparison of hydrogen diffusion characteristics in three different kinds of TRIP steels (with higher phosphorus content, higher aluminum content and higher silicon content). The steels were tested in as-received state after standard heat treatment including two step annealing – an intercritical annealing and an annealing in the range of bainitic transformation and in states after 5 % and 10 % tensile deformation. [..]
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KURP Piotr Kielce University of Technology, Laser Processing Research Centre, Kielce, Poland, EU
Co-authors:
BANAK Rafał
MULCZYK Krystian
ZRAK Andrej
Abstract:
This paper addresses the FEM numerical analysis of thermal field distribution in a thin-walled aluminum alloy pipe subjected to circumferential welding with a laser beam as a source of heat. The paper presents constitutive equations describing the studied phenomenon. [..]
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SKUBISZ Piotr AGH University of Science and Technology in Cracow, Faculty of Metals Engineering and Industrial Computers Science, Mickiewicz 30 Ave, Cracow, Poland
Co-authors:
MUSZKA Krzysztof
LISIECKI Łukasz
MAJTA Janusz
Abstract:
The subject of the study is theoretical modeling for analysis of the microstructure development in progressive droughts of the forging sequence aimed at prediction of the parameters of austenite in as-forged condition, prior to and after direct cooling. Based on numerical calculation of temperature, strain and strain-rate, dynamic recrystallization kinetics were analyzed with use of Johnson-Mehl-Avrami-Kolmogorov (JMAK) model, and the transformed ferrite grain size was calculated, with the use of Hodgson-Gibbs and Sellars-Beynon models. [..]
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MARYNOWSKI Przemysław AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland, EU
Co-authors:
ADRIAN Henryk
GŁOWACKI Mirosław
WOŹNY Krzysztof
Abstract:
Proposition of a Cellular Automata (CA) model of carbonitride precipitation to simulate image of microstructure in microalloyed niobium steels is presented in the paper. CA model proved to be very efficient in modeling various phenomena in material science. [..]
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MAJTÁS Dušan ITAM CAS v.v.i.- Institute of Theoretical and Applied Mechanics, Czech Academy of Science, Center of Excellence Telč, Telč, Czech Republic, EU
Co-authors:
MÁCOVÁ Petra
KREISLOVÁ Kateřina
PŘÍHODA Jiří
Abstract:
Simulation of iron alloy corrosion is widespread used to predict corrosion resistance. The simulation using corrosion chambers or climatic chambers provides reasonable information on corrosion resistance, the corrosion rate however must be compared to real exposition as the corrosion in simulated environment is accelerated compared to real situation. [..]
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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, paul.kucera@seznam.cz
Co-authors:
SAKSL Karel
KUČERA Pavel
Abstract:
Work deals with phase formation of eight high entropy alloys of FeCuxCr1-xMnNi type and of three alloys of FexCuCrMnNi system with high entropy effect. Predicted compositions of phases using Ni and Cr equivalents and by use of valence electron concentration are compared with real finding of presented phases in all aforesaid systems. [..]
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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, vratislav.maresl@vsb.cz
Co-authors:
BYSTRIANSKÝ Jaroslav
KRAUS Martin
Abstract:
Steels in the cooling water circuits are most vulnerable to localized corrosion, crevice corrosion or deposit corrosion, intergranular corrosion. Austenitic steels excel in their resistance to corrosive environments. [..]
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BURCA Mircea Politehnica University Timisoara, Materials and Manufacturing Engineering Department, 1 Mihai Viteazu Blvd., 300222, Timisoara, Romania, EU
Co-authors:
LUCACIU Ioan
MAGDA Aurelian
Abstract:
Using pulsed current at manual metal arc welding represents a new research idea perspective and provocative for major manufacturers of welding equipment. The concept is based on the ability to control the volume of welding pool at low frequencies of the pulses, below 5 Hz.Experimental research underlines the beneficial influence of pulsed current welding on weld geometry for butt joints. [..]
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MOURUJÄRVI Juho Materials and Production Engineering – University of Oulu, Finland, EU
Co-authors:
TIHINEN Sakari
MEHTONEN Saara
LAHTINEN Teemu
VILACA Pedro
KAIJALAINEN Antti
PORTER David
KÖMI Jukka
Abstract:
This research is concerned with the effect of titanium in the range 0.01 to 0.13 wt. % on the base plate and weldability properties of laboratory hot-rolled cold-formable steels with yield strengths in the range 500 – 900 MPa (S500MC - S900MC). [..]
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OLEJARCZYK-WOŻEŃSKA Izabela AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, al. A. Mickiewicza 30, 30-059 Cracow, Poland, EU, iolejarc@agh.edu.pl
Co-authors:
MRZYGŁÓD Barbara
GIĘTKA Tomasz
KOWALSKI Adam
Henryk Adrian
Abstract:
Ductile iron with 1.56% Ni was subjected to various cycles of the austempering treatment. For all variants, the austenitization temperature was 920oC and the time of holding was 2 hours. [..]
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OLINA Anna BUT – Brno University of technology, Brno, Czech Republic, EU
Co-authors:
PÍŠKA Miroslav
Abstract:
This paper deals with a comparison between the standard spring steel grade 0.54C-1.45Si-0.7Mn-0.7Cr and a grade micro-alloyed spring steel with 0.12 % V in terms of microstructure, grain refinement, strength and ductile properties. The micro-alloyed steel is supposed to provide a better performance as it had been proven for hot-rolled and heat treated wire. [..]
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PAGÁČ Marek VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU
Co-authors:
MALOTOVÁ Šárka
ZLÁMAL Tomáš
PETRŮ Jana
KRATOCHVÍL Jiří
Abstract:
The article deals with the evaluation of chosen parameters of surface roughness on the square section samples from stainless steel 316L (1.4404), manufactured by the additive technology with using Selective Laser Melting method (SLM). As part of the experiment was measured (scanned) and compared of chosen parameters of surface roughness on plane area of the samples printed in the same process parameters with a difference of power of the laser. [..]
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PAGÁČ Marek VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU
Co-authors:
HAJNYŠ Jiří
PETRŮ Jana
ZLÁMAL Tomáš
ŠOFER Michal
Abstract:
The article deals with the study of verification and evaluation of selected mechanical properties of stainless steel 316L (1.4404) after the production of additive technologies (3D printing) by Selective Laser Melting (SLM). For the purpose of the experimental testing were printed two sets of samples from the powder metal by the laser-sintering process at different process parameters. [..]
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PARILÁK Ľudovít ŽP Research and Development Centre, Ltd., Kolkáreň 35, 97681 Podbrezová, Slovakia, *bekec@zelpo.sk
Co-authors:
BEKEČ Pavel
BERAXA Pavol
Abstract:
This paper deals with the influence of various austenitizing temperatures on microstructure and kinetics growth of austenite grain in 9 CrNB steel. High austenitizing temperatures (1070 °C, 1150 °C, 1170 °C, 1190 °C, 1210 °C and 1230 °C) with a holding time 120 min were used. [..]
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PODANY Pavel COMTES FHT a.s., Prumyslova 995, 334 41 Dobrany, Czech Republic, EU
Co-authors:
DUCHEK Michal
Abstract:
Twinning Induced Plasticity steel, or TWIP steel, has had increased interest in recent years from various industry sectors. This is due to it being light weight, strong, and ductile; which are all properties that are useful in the automotive and aerospace industries. [..]
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POKLUDA Jaroslav Alexander Dubček University of Trenčín, Trenčín, Slovak Republic, EU
Co-authors:
HORNÍKOVÁ Jana
PÍŠKA Miroslav
ŠANDERA Pavel
Abstract:
The Selective Laser Melting (SLM) is an advanced technology of producing three-dimensional solid objects by 3D printing from a digital file. The article deals with fatigue push-pull testing of SLM samples to determine the dependence of their fatigue characteristics on the orientation of laser melted layers to the loading axis, the hatch spacing of the laser beam and the surface roughness of 3D printed objects. [..]
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RIEMSCHNEIDER Eduard University Politehnica of Timisoara, Faculty of Mechanical Engineering, Timisoara, Romania, EU
Co-authors:
BORDEAȘU Ilare
MITELEA Ion
UȚU Ion Dragoș
Abstract:
The most negative effect of cavitation is the destruction of the solid surface by micro-jets impact or shock waves generated by implosion or explosion of cavitation bubbles. It is present in all hydro-mechanical equipment where the pressures fluctuate which lead to the appearance and development of these bubbles, as a result of the flow section changing.The paper analyses the behaviour and resistance to vibrating cavitation of grey cast iron with pearlite microstructure, used for manufacturing of components and shutters valves with metal-metal sealing. [..]
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ROŽNOVSKÁ Gabriela Materiálový a metalurgický výzkum s.r.o., Pohraniční 693/31, Vítkovice, 703 00 Ostrava, Czech Republic
Co-authors:
VODÁREK Vlastimil
KUBOŇ Zdeněk
Abstract:
The steels with high chromium content are known to suffer embrittlement at elevated temperature induced either by decomposition of the microstructure into two arranged solid solutions α+α´ (embrittlement at 475 °C) or by precipitation of chromium-rich brittle phase . Martensitic precipitation hardening steels belong among materials having chromium content close to the minimum embrittlement concentration and in some circumstances there could be possibility of prolonged exposure of these steels at elevated temperatures. [..]
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URLAN Sorin Dumitru University Politehnica Timisoara, Pta Victoriei, no. 2, Timisoara, Romania, EU, sorinurlan@yahoo.com, ion.mitelea@upt.ro, mircea.burca@upt.ro
Co-authors:
KARANCSI Olimpiu
MITELEA Ion
BURCĂ Mircea
Abstract:
Extending the application area of Duplex stainless steels has led to the necessity of creating components or structures made of dissimilar materials. Due to the differences in the microstructure, the welding of the dissimilar steels is more difficult than that of similar steels.The research carried out in the current paper focuses on the particularities of completing the heterogeneous welded joints between a Duplex stainless steel and a Cr-Mo low alloy steel using as additional material an electrode wrapped in E 309MoL – 16, which contains approx. [..]
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PIEKARSKA Wiesława Czestochowa University of Technology, Institute of Mechanics and Machine Design Foundations, Czestochowa, Poland, EU, saternus@imipkm.pcz.pl
Co-authors:
SATERNUS Zbigniew
KUBIAK Marcin
DOMAŃSKI Tomasz
GOSZCZYŃSKA-KRÓLISZEWSKA Dorota
Abstract:
This paper concerns computer analysis of stress states and numerical prediction of the formation of deformations in T-joint welded by a laser beam technique. Numerical analysis of thermomechanical phenomena are carried out in Abaqus / FEA commercial engineering software, which is based on finite element method (FEM). [..]
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