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Conference Proceedings - METAL 2015
24th International Conference on Metallurgy and Materials
June 3rd - 5th 2015 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-58-1
Proceedings of the conference were published in Web of Science and Scopus.
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ELEN Levent Karabuk University, Department of Metallurgy and Materials Engineering, Karabuk, Turkey
Co-authors:
ZENGIN Huseyin
TUREN Yunus
TURAN Muhammet Emre
SUN Yavuz
AHLATCI Hayrettin
Abstract:
In this study, the effects of bismuth additions of 0.2, 0.5 and 1 wt% on microstructure and mechanical properties of AZ91 alloy were examined. A permanent mold casting procedure was carried out to produce the alloy billets under a mixed gas atmosphere of SF6 and CO2. [..]
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MÁLEK Václav Technical University of Liberec, Department of Materials, Faculty of Engineering, Liberec
Co-authors:
BAKALOVA Totka
VOLESKÝ Lukáš
Abstract:
Currently, the methods of material coating by CVD (Chemical Vapour Deposition) and PVD (Physical Vapour Deposition) are expanding considerably. These methods are used in engineering and other industries. [..]
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NOVÁKOVÁ Radka University of Chemistry and Technology Prague – Department of Metals and Corrosion Engineering, Prague, Czech Republic, EU
Co-authors:
KOUŘIL Milan
STOULIL Jan
SPLÍTEK Karel
ŠPINAR Vojtěch
DOBIÁŠ Daniel
POKORNÝ Petr
Abstract:
Reinforced concrete service-life depends on a transport rate of corrosion stimulators, especially chlorides, towards the reinforcement through concrete cover layer. Traditional migration tests are able to state the effective diffusion coefficient; however they do not provide the information about the microstructure and its development in time. [..]
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PASIECZYNSKI Łukasz Firma Handlowa Barwa Jaroslaw Czajkowski, Kielce, Poland, EU
Co-authors:
RADEK Norbert
RADZISZEWSKA-WOLINSKA Jolanta
Abstract:
The article is focused on corrosion problems in the rolling stock. Various factors which determine speed intensity of a corrosion process are presented. [..]
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PETRŮ Jana VSB - Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Machining, Assembly and Engineering Metrology, Ostrava, Czech Republic, EU
Co-authors:
SCHIFFNER Jan
ZLÁMAL Tomáš
ČEP Robert
KRATOCHVÍL Jiří
STANČEKOVÁ Danka
Abstract:
This article deals with experimental determination of cutting tool wear during machining of Ti6Al4V alloy. This alloy features worsened machining ability that has direct influence on wear intensity and durability of cutting tool during machining. [..]
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ANTOSZEWSKI Krzysztof University of Technology in Kielce, Department of Applied Computer Science and Armament Engineering, Kielce, Poland, EU
Co-authors:
RADEK Norbert
DUDEK Agata
Abstract:
The paper presents the results of investigations into the microstructure of coatings made from bearing alloys on the bronze substrate. This option is used for slide bearing bushings to improve break-in parameters. [..]
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STANCEKOVA Dana University of Zilina, Zilina, Slovakia, EU
Co-authors:
SAJGALIK Michal
PETRU Jana
NAPRSTKOVA Natasa
BALAZ Pavol
Abstract:
One of very important requirements for measuring devices is fact that measured values of observed quantity will be in specific tolerance zone of actual value also after longer period of use. Deviations of actual value can be caused by several factors – improper handling with devices, inadequate maintenance and storing, aging of materials of which they are made and last but not least, by wear of single parts.The target was to define the way of wear elimination of most faulty parts of dial gauges to obtain the maximum possible lifetime with minimal possible costs. [..]
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SMAZALOVÁ Eva University of W est Bohemia, Pilsen, Czech Republic, EU, smazal@ntc.zcu.cz, houdkov@ntc.zcu.cz
Co-authors:
HOUDKOVÁ Šárka
Abstract:
This paper provides a study of sliding wear behavior of Cr3C2-CoNiCrAlY thermally sprayed coating at room and high temperature - 600°C. Wear testing was realized by linearly reciprocating Ball-on-Flat sliding wear test according to ASTM G133-05, so called fretting test using the tribometer CETR-UMT3. [..]
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ŠŤASTNÝ Vladislav VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, pavel.svec@vsb.cz
Co-authors:
ŠVEC Pavel
DAVID Jiří
GARZINOVÁ Romana
Abstract:
This paper describes experiments for the development of methods of non-destructive, non-contact surface diagnostics. This is oriented on technical systems in metallurgical operations with usage of laser scanners and digital image processing techniques. [..]
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SZABÓ Juraj Institute of Materials Research of Slovak Academy of Sciences, Kosice, Slovakia, EU
Co-authors:
ĎURIŠIN Juraj
SAKSL Karol
BALGA Dušan
OSTROUSHKO Dimitrii
Abstract:
The study compares the microstructure of the dispersion strengthened Cu – MgO composites prepared by thermo-chemical transformations of precursors and mechanical milling followed by spark plasma sintering technique. The effect of two different MgO contents (3 and 5 vol.%) on formation and stability of the copper matrix nanostructure is analysed. [..]
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VONTOROVÁ Jiřina VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, jirina.vontorova@vsb.cz
Co-authors:
BENEŠ David
MOHYLA Petr
HAVELKA Lukáš
Abstract:
Surface treatments of metals are important areas of mechanical engineering. Galvanizing, which is a zinc coating on the steel base material by electrolytic deposition, belongs among the wide range of methods. [..]
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ZUZÁNEK Lukáš Technical University of Liberec, Liberec, Czech Republic, EU
Co-authors:
ŘIDKÝ Ondřej
SOLFRONK Pavel
KOLNEROVÁ Michaela
SOBOTKA Jiří
Abstract:
The Zn-Mg coatings are considered as the next generation of steel covering that should be used in automotive industry since they improve the corrosion resistance of the base material. The weakness of this coating lies in its higher hardness and lesser ability of plastic deformation in comparison to the purely zinc coatings. [..]
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HAVLIK Tomas Technical University of Kosice, Faculty of Metallurgy, Department of Non-ferrous Metals and Waste Treatment, Kosice, Slovakia, EU, tomas.havlik@tuke.sk
Co-authors:
KUKURUGYA Frantisek
MISKUFOVA Andrea
JASCISAK Jan
Abstract:
This work deals with the possibility of hydrometallurgical treatment electric arc furnace (EAF) dust using dilute sulfuric acid solutions. The origin of the EAF dust sample was Železiarne Podbrezová a.s., . [..]
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KOMÍNEK Jan Brno University of Technology, Brno, Czech Republic, kominek@lptap.fme.vutbr.cz
Co-authors:
HŘIBOVÁ Veronika
POHANKA Michal
Abstract:
Cooling is one of the critical points during aluminum casting. Improper cooling leads to a structure which isn't homogenous, full of internal and surface defects. [..]
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KULA Anna AGH – University of Science and Technology, Faculty of Non-Ferrous Metals, Cracow, Poland, EU
Co-authors:
BLAZ Ludwik
Abstract:
Rapid solidification (RS) of Al – TM alloys (TM: Fe, Ni, Mn), combined with following mechanical consolidation of RS flakes was used to produce highly refined structure of the materials. RS flakes were manufactured using spray deposition of the molten alloy on the rotating water-cooled copper roll. [..]
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TOKARSKI Tomasz AGH - University of Science and Technology, Faculty of Non-Ferrous Metals, Cracow, Poland, EU, tokarski@agh.edu.pl, harry@agh.edu.pl
Co-authors:
WĘDRYCHOWICZ Mateusz
Abstract:
High strength aluminum alloys are commonly used as structural materials, particularly in the areas of industry where high specific strength is required. It has been already recognized that among all wrought aluminum alloys, precipitation strengthened 2xxx and 7xxx series alloys exhibit the highest mechanical properties. [..]
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MOLNÁROVÁ Orsolya Charles University in Prague, Faculty of Mathematics and Physics, Department of Physics of Materials, Ke Karlovu 5, 12116, Prague 2, Czech Republic, e-mail: malek@met.mff.cuni.cz
Co-authors:
MÁLEK Přemysl
BECKER Hanka
Abstract:
The microstructure and mechanical properties of powder metallurgical Al7075 alloy modified by the addition of 1 wt. % Zr were studied. [..]
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FIKAR Ladislav EXOVA s.r.o., Pilsen, Czech Republic, EU, ladislav.fikar@exova.com
Abstract:
Exova Plzeň tests the load control fatigue test according to the required specifications due to the quality control on rolled aluminum sheets and plates.Although the machining process is described in specifications in a very detail way, the first test results were approximately 10 % lower than expected. Some round robin test results met the requirements while some others did not. [..]
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ZRNIK Jozef COMTES FHT Inc., Dobrany, Czech, Republic
Co-authors:
SCHERIAU Stephan
PIPPAN Reinhard
SLAMA Peter
Abstract:
In this study ultrafine grain structure evolution during high pressure torsion of commercial aluminum alloy AA6082 at increased temperature is presented. Two different initial states of the alloy were prepared by thermal treatment. [..]
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POKOVÁ Michaela Charles University in Prague, Faculty of Mathematics and Physics, Department of Physics of Materials
Co-authors:
ZIMINA Mariia
CIESLAR Miroslav
GRYDIN Olexandr
Abstract:
Twin-roll cast AA3003 series aluminum alloy was subjected to several passes of asymmetric rolling at room temperature. This process is more effective in the grain refinement than conventional cold-rolling. [..]
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