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Conference Proceedings - METAL 2016
25th Anniversary International Conference on Metallurgy and Materials
May 25th - 27th 2016 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-67-3
Proceedings of the conference were published in Web of Science and Scopus.
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LICHÝ Petr VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, petr.lichy@vsb.cz
Co-authors:
KROUPOVÁ Ivana
RADKOVSKÝ Filip
NGUYENOVÁ Isabel
Abstract:
The work deals with the controlled gasification of castings from aluminum alloys. In troubled places of castings the thermal nodes that cannot be always fitted with risers and interior shrinkage with negative influence on tightness and the mechanical properties of casting are formed. [..]
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MACIĄGTomasz Silesian University of Technology, Institute of Metal Technology, Katowice, Poland, EU
Abstract:
Nickel-rich part of ternary system Ni-Al-Cr is crucial for currently used nickel superalloys and alloys based on intermetallic phase Ni3Al. Those materials are dedicated to work at elevated temperature and consist, among others, of ordered phase γ′ and disordered phase γ in different proportions. [..]
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MALCHARCZIKOVÁ Jitka VŠB-TU Ostrava, Faculty of Metallurgy and Materials Engineering, Ostrava, Czech Republic, EU, jitka.malcharczikova@vsb.cz, miroslav.kursa@vsb.cz, martin.pohludka@vsb.cz, petr.kawulok@vsb.cz, stanislav.rusz2@vsb.cz
Co-authors:
KURSA Miroslav
POHLUDKA Martin
KAWULOK Petr
RUSZ Stanislav
JORDANOVOVÁ Veronika
Abstract:
Ni3Al based alloys in the as-cast state and directionally solidified were used for tests in compression at higher temperatures. The alloys were prepared by vacuum induction melting. [..]
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MOLA Renata Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland, EU, rmola@tu.kielce.pl
Abstract:
Alloyed layers enriched with Zn and Al were fabricated on an Mg substrate using the powder-pack method. The Mg specimens were first immersed in Zn+Al powder mixtures serving as the source of diffusion elements and then heated at 440 °C for 60 min. [..]
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Pohludka Martin VSB – Technical University of Ostrava, Ostrava, Czech Republic, EU, martin.pohludka@vsb.cz, jitka.malcharczikova@vsb.cz, miroslav.kursa@vsb.cz, rostislav.kawulok@vsb.cz, petr.opela@vsb.cz
Co-authors:
Malcharcziková Jitka
Kursa Miroslav
Kawulok Rostislav
Opěla Petr
Abstract:
The Ni-22Al-0.5B and Ni-24Al-0.5B alloys (at.%) were prepared by a vacuum induction melting process followed by a gravity casting process. The castings were directionally solidified in a resistance furnace at a temperature of 1550 °C and rate of directional solidification of 50 mm h-1. [..]
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POPOVICH Anatoliy Peter the Great St. Petersburg Polytechnic University, Saint-Petersburg, Russia, polozov_ia@spbstu.ru
Co-authors:
SUFIIAROV Vadim
POLOZOV Igor
BORISOV Evgenii
MASAYLO Dmitriy
Abstract:
Additive manufacturing (AM) is a promising technique for producing complex parts layer by layer from different metal alloys. Selective Laser Melting (SLM) consists of melting a previously formed powder layer by laser and fusing layers together according to the CAD-data. [..]
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PREISLER Dalibor Charles University in Prague, Faculty of Mathematics and Physics, Department of Physics of Materials, Prague, Czech Republic, EU, preisler.dalibor@gmail.com
Co-authors:
VÁCLAVOVÁ Kristína
STRÁSKÝ Josef
JANEČEK Miloš
HARCUBA Petr
Abstract:
Recently developed metastable alloy Ti–35.3Nb–7.3Zr–5.7Ta–0.7O (wt.%) abbreviated TNZTO is unique in its high oxygen content and exhibits promising properties for successful use in biomedicine, namely for total endoprostheses and bone fixation. As-cast material is not fully homogeneous; it shows dendritic structure and high density of micro-sized pores. [..]
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RADKOVSKÝ Filip VSB-Technical University of Ostrava, Ostrava, Czech Republic, EU, filip.radkovsky@vsb.cz
Co-authors:
GEBAUER Marek
KROUPOVÁ Ivana
LICHÝ Petr
Abstract:
The article deals with casting methods of producing of metallic foams, it is focused on materials with a regular arrangement of internal cells. Currently, there are two areas dealing with metallic foams: optimization of already used casting technologies - manufacturing of metallic foams with a regular cell structure using sand cores and the possibility of the usage of this material. [..]
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ŘIDKÝ Ondřej TUL - Technical University of Liberec, Liberec, Czech Republic, EU
Co-authors:
GANEV Nikolaj
Nová Iva
SOBOTKA Jiří
Abstract:
These days are more and more posing claims for the highest quality of castings from the aluminum alloys and for the lowest weight of these castings. These requirements force producers of such castings to utilize materials properties as much as possible. [..]
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SIDOROV Evgeny Vladimir State University, Vladimir, Russian Federation, sidorov, ev@mail.ru
Co-authors:
BAZHENOV Viacheslav
Abstract:
In the work the mechanism of the equilibrium and non-equilibrium crystallization of the alloys in the ternary system with the monovariant eutectic equilibrium has been investigated. New peculiarities of the equilibrium crystallization of the binary eutectics in the ternary systems have been found out. [..]
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ŠPALEK František VSB - Technical University of Ostrava, Ostrava, Faculty of Mechanical Engineering, Department of Machining, Assembly and Engineering Metrology, Ostrava, Czech Republic, EU, frantisek.spalek@vsb.cz
Co-authors:
PETRŮ Jana
TROCHTA Miroslav
HAŠOVÁ Slavomíra
HLOCH Sergej
Abstract:
The contribution is focused on assessing the influence of ALPORAS aluminum foam porosity on dimensional precision of machined workpiece using electro-erosion wire cutting technology. The surface structure of material is formed by continuous nets of membrane material, pore volumes and cavities filled with gases residues after foaming. [..]
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SZABÓ Juraj Institute of Materials Research of Slovak Academy of Sciences, Košice, Slovak Republic, EU
Co-authors:
ĎURIŠINOVÁ Katarína
ĎURIŠIN Juraj
Abstract:
The study is centred on preparation and microstructural analysis of Cu composites containing different volume contents of secondary phases (MgO, Al2O3). The microstructure evolution is observed during the preparation of a nanocrystalline powder and after its processing into a compact. [..]
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SZAREK Arkadiusz Czestochowska University of Technology, Faculty of Mechanical Engineering and Computer Science, Institute of Mechanical Technology, Częstochowa, Poland, EU, arek@iop.pcz.pl
Abstract:
Modular hip joint endoprostheses allow for fitting the head size and offset (distance from the centre of the head to the mechanical axis of the prosthesis) with the prosthesis size. This is possible through application of the external lock cone, mainly with dimensions of d = 12, L = 11, D = 14, and the internal cone with the same dimensions in the head. [..]
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SZWED Bartłomiej Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, 25-314 Kielce, 1000-lecia P.P. av. 7, Poland, bartlomiej_szwed@o2.pl
Co-authors:
KONIECZNY Marek
Abstract:
In present investigation diffusion bonded joints between titanium (Grade 2) and stainless steel (X5CrNi18-10) using 120 μm thick aluminum foil as a filler metal were produced at 600 °C for 60 minutes under: 2, 4, 6 and 8 MPa pressure in vacuum. The microstructure was investigated using light optical microscopy and scanning electron microscopy equipped with an energy dispersive X-ray system (EDS) to determine chemical composition of the joint. [..]
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TUNÇ PARLAK Tuğba Sakarya University, Engineering Faculty, Metallurgy and Materials Engineering, 54187, Sakarya, Turkey, ttunc@sakarya.edu.tr
Co-authors:
YILDIZ Kenan
Abstract:
Nickel is essential metal due to usage area as stainless steel, non-ferrous alloy production, electroplating and chemical industry. Degradation of nickel sulphides leads to extraction of nickel from laterites. [..]
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FOUSOVÁ Michaela University of Chemistry and Technology Prague, Prague, Czech Republic, EU
Co-authors:
VOJTĚCH Dalibor
KUBÁSEK Jiří
Abstract:
Selective Laser Melting (SLM), an additive manufacturing technology, shows a high potential for preparation of biomedical implants, especially from reason of its capability to achieve geometrically complex shapes. Therefore, a preliminary research was done in order to characterize microstructure and mechanical properties of titanium alloy Ti-6Al-4V, one of the most frequently used materials for orthopaedic implants. [..]
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WEISS Viktorie The Institute of Technology and Business in České Budějovice, České Budějovice, EU, 19638@mail.vstecb.cz
Abstract:
In the course of homogenizing annealing of aluminum alloys being cast continually or semi-continually it appears that chemical inhomogeneity takes off within separate dendritic cells (crystal segregation). It is about a diffusional process that takes place at the temperature which approaches the liquid temperature of the material. [..]
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WOJTASZEK Marek AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Cracow, Poland, EU
Co-authors:
ŁUKASZEK-SOŁEK A.
ŚLEBODA T.
LYPCHANSKYI O.
Abstract:
Ti-6Al-2Sn-4Zr-6Mo (Ti-6-2-4-6) is a high strength titanium alloy having low density and good corrosion resistance. The primary commercial applications of this alloy are forgings designed for working at intermediate temperature turbine engine rotating components. [..]
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ZEMANOVÁ Lucie Institute of Machine and Industrial Design, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic, EU
Co-authors:
KRATOCHVÍLOVÁ Vendula
VLAŠIC František
MAZAL Pavel
Abstract:
The aim of this study is an investigation of fatigue properties and degradation development caused by cyclic loading in EN AW-2618A aluminum alloy fabricated by selective laser melting (SLM). Recently, the growing significance of aluminum as a constructional material is evident, and due to possibility of manufacturing parts with complicated geometry, it would be beneficial to be able to produce high-strength aluminum alloys using SLM. [..]
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ZEMKOVÁ Mária Department of Physics of Materials, Charles University, Praha, Czech Republic, EU
Co-authors:
KRÁL Robert
BOHLEN Jan
MINÁRIK Peter
Abstract:
This report shows first investigation of microstructure development and its effect on mechanical strength and corrosion resistance of non-commercial magnesium alloy WN43 processed extrusion (Ex) and equal-channel angular pressing (ECAP). Bimodal grain size distribution with high volume fraction of ultra-fine grains about 650 nm in diameter was achieved after 4 passes through ECAP. [..]
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