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KEKULE Tomáš Charles University in Prague, Faculty of Mathematics and Physics, Prague, Czech Republic, EU
Co-authors:
VLACH Martin
KUDRNOVÁ Hana
KODETOVÁ Veronika
SMOLA Bohumil
STULÍKOVÁ Ivana
Abstract:
The aim of this work was to investigate and compare microstructure changes in squeeze cast heat treated Mg–2Y–1Nd–1Zn (WEZ211) and Mg–3Y–2Nd–1Zn–1.5Mn (WEZM3211) alloys. The WEZM3211 alloy was isochronally heat treated in 30 °C/30 min steps from room temperature up to 510 °C, the WEZ211 alloy was first isochronally heat treated in steps of 20 °C/20 min up to 440 °C, quenched and isochronally heat treated again. [..]
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HANUSOVÁ Petra Brno University of Technology, Faculty of Mechanical Engineering, Institute of Materials Science and Engineering, NETME Centre, Brno, Czech Republic, EU, hanusova@fme.vutbr.cz
Co-authors:
ČUPERA Jan
DLOUHÝ Ivo
Abstract:
Mechanochemical processing route appears to be an advanced technique for synthesis of nanosized materials of composite type. The work is focused on the synthesis of Nb-Nb3Al/Al2O3 composite by mechanical alloying (MA). [..]
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POHLUDKA Martin VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU martin.pohludka@vsb.cz, jitka.malcharczikova@vsb.cz, daniel.petlak@vsb.cz
Co-authors:
Malcharcziková Jitka
PETLÁK Daniel
Abstract:
A preparation of alloys based on the Ni3Al intermetallic compound alloyed with molybdenum by classical castings methods, such as an induction melting, is limited by a high melting point of molybdenum (2623 °C). Decreasing of the melting point on the value of 1417 °C was reached by a preparation of the Ni-15Mo (wt.%) master alloy by plasma metallurgy. [..]
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AMRANE Chahira Research Unit of Materials Sciences and Applications, University of Constantine1, Algeria, *chahira.amrane@gmail.com
Co-authors:
HAMANA Djamel
RUBIN Anne
GAUTHIER Christian
Abstract:
The Al-Mg 5xxx series aluminum alloy are widely used in industry especially for marine applications since they possess an excellent balance among material such as general corrosion resistance, strength, weldability, weight compared to other Al alloys and formability. These properties are related to the magnesium content and to the applied heat treatments. [..]
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CHERNIKOV Evgenii Peter the Great Saint Petersburg State Polytechnic University, St. Petersburg, Russian Federation
Co-authors:
NAUMOV Anton
GOLUBEV Iurii
MICHAILOV Vesselin
Abstract:
Strain and temperature distribution fields during Friction Stir Welding (FSW) including plunging and welding stage were simulated using licensed software Deform 3DTM with Lagrangian Incremental formulation settings. Non-uniform temperature and strain distribution fields were observed. [..]
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JUŘICA Jan VSB-Technical University of Ostrava, FMMI, RMTVC, Ostrava, Czech Republic, EU, jan.jurica@vsb.cz
Co-authors:
SKOTNICOVÁ Kateřina
PETLÁK Daniel
Abstract:
The possibilities of microstructure refinement of several γ-TiAl alloys by the massive transformation and the effect of refinement on compression properties are discussed in this paper. Two alloys were prepared by plasma arc melting using the water-cooled copper crystallizer and two other alloys were prepared by vacuum induction melting. [..]
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ČERMÁK Jiří IPM AS CR, v.v.i., Žižkova 22, CZ-61662 Brno, Czech Republic, EU;
Co-authors:
KRÁL Lubomír
Abstract:
Hydrogen storage in two Mg-In-C alloys with different indium concentration cIn was studied in the temperature range from 250 °C to 350 °C after five-years-ageing at room temperature. The both alloys show acceptable cycling stability, however, the storage capacity of the alloys decreased from about 5 wt.% H2 to about 2.5 and 3.1 wt.% H2 by higher cIn and lower cIn concentration, respectively after 5 years. [..]
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ISUPOV Fedor Yu. Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia, isupov_fyu@spbstu.ru
Co-authors:
GANIN Sergey V.
KODZHASPIROV George E.
TSEMENKO Valeriy
MICHAILOV Vesselin G.
Abstract:
Structured sheet metals are becoming more and more popular for using in lightweight constructions. In the present research three different schemes to produce structured sheet from aluminum AW6061-T6, namely stretch forming (two type of die) and stamping using elastomer, were investigated. [..]
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LASEK Stanislav VŠB – Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Regional Materials Science and Technology Centre, Av. 17. listopadu 15, 70833 Ostrava-Poruba, Czech Republic, e-mail: stanislav.lasek@vsb.cz
Co-authors:
SKOTNICOVÁ Kateřina
BYRTUS Marek
HLINKA Josef
Abstract:
Research in the field of magnetic materials based on Nd-Fe-B is focused on the improvement of certain magnetic characteristics by alloying of suitable elements (Co, Dy, Pr, Cu), extending the thermal stability of these permanent magnets, improving their corrosion resistance and the creation of nano-structure modifications. Magnets based on Nd-Fe-B are susceptible to corrosion, especially in humid atmospheres. [..]
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MOLA Renata Department of Applied Computer Science and Armament Engineering, Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Kielce, Poland, EU
Co-authors:
BUCKI Tomasz
DZIADOŃ Andrzej
Abstract:
A TIG torch was used as the heat source for surface alloying of Mg. The alloying material in the form of an AlMg4.5Mn wire was directly fed into the melt pool. [..]
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LICHÝ Petr VSB - Technical University of Ostrava, Department of Metallurgy and Foundry Engineering, Ostrava, Czech Republic, EU
Co-authors:
BEŇO Jaroslav
KROUPOVÁ Ivana
RADKOVSKÝ Filip
Abstract:
Material properties in cast condition are largely influenced by its structure. Here you can influence, for example the speed of solidification, or metallurgical operation. [..]
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MADAJ Michal VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU
Co-authors:
SZURMAN Ivo
DRÁPALA Jaromír
VONTOROVÁ Jiřina
POHLUDKA Martin
Abstract:
The NiTi alloy was remelted by electron beam zone melting. The initial state of the NiTi samples was after swaging. [..]
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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 metal foams are materials with great potential for use in various fields of industry. The pores created deliberately in the structure give them many exceptional properties; one of the most important features is the ability of energy absorption. [..]
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ĎURIŠIN Juraj Institute of Materials Research of Slovak Academy of Sciences, Kosice, Slovakia, EU
Co-authors:
ĎURIŠINOVÁ Katarína
OROLÍNOVÁ Mária
Abstract:
The ultrafine Cu–3 vol.% Al2O3 and Cu–3 vol.% MgO powders with comparable nanocrystalline structures were prepared by thermo-chemical technique and mechanical milling followed by hot extrusion. The study compares an influence of the two different oxide dispersoids on strengthening of the copper matrix after thermo-deformation consolidation of the powders into bulk compacts and annealing of the compacts at elevated temperatures. [..]
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PÁLENÍKOVÁ Lucie Brno University of Technology, Faculty of Mechanical Engineering, Institute of Materials science and Engineering, The NETME Centre
Co-authors:
JAN Vít
ČUPERA Jan
ČÍŽEK Jan
Abstract:
Properties of materials made from elemental metallic powders deposited by cold gas dynamic spraying were studied – Fe-Al, Fe-Cu and Fe-Ni. The samples were annealed in protective atmosphere and macroscopic features like porosity were evaluated before sectioning. [..]
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ZÝKA Jiří UJP PRAHA a.s. Prague, Czech Republic, EU, zyka@ujp.cz
Co-authors:
MÁLEK Jaroslav
PALA Zdeněk
ANDRŠOVÁ Irena
VESELÝ Jaroslav
Abstract:
High entropy alloys are a new material class with promising structural and mechanical properties in wide range of applications. In principle they consist of five or more elements in equimolar concentrations resulting basically in single phase microstructure. [..]
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FORMÁNEK Josef University of W est Bohemia in Pilsen, Pilsen, Czech Republic, EU, skal@kmm.zcu.cz
Co-authors:
KUČEROVÁ Ludmila
TOCHYLIN Mykhailo
Abstract:
Various materials can be used nowadays for vehicle construction, ranging from aluminum alloys and composite materials to high strength steels. For successful utilization of Al alloys, it is advantageous to carry out calculations using FEM and computer simulation tests to verify engineering construction design. [..]
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SKRZEKUT Tomasz AGH - University of Science and Technology, Faculty of Non-Ferrous Metals, Cracow, Poland, EU
Co-authors:
KULA Anna
BLAZ Ludwik
Abstract:
Mechanical alloying (MA) of light metal powders with addition of other metal-oxides is a very promising method for production of high strength metallic composites. Of particular interest are the aluminum matrix composites reinforced by heavy metal oxides (MeO), which cannot be produced by means of common metallurgical processes due to the high reactivity of components. [..]
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BRYKSÍ STUNOVÁ Barbora CTU in Prague, Faculty of Mechanical Engineering, Dept. of Manufact. Technology, Czech Republic, EU
Co-authors:
BRYKSÍ Vlastimil
PUCHNIN Maxim
Abstract:
The paper describes the metallurgical, technological and heat treatment aspects of semi-solid casting process. Rheocasting SEED method using mechanical swirling for reaching proper structure in semisolid state was applied to alloy AlSi7Mg0.3. [..]
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HLINKA Josef VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU
Co-authors:
KVÍČALA Miroslav
LASEK Stanislav
Abstract:
Materials for long term implants must be highly corrosion resistant. Corrosion resistance of surface is closely connected to biocompatibility of particular application. [..]
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