Search Results - "Tomas Vlasak"

Phase transformations in novel hot-deformed Al–Zn–Mg–Cu–Si–Mn–Fe(–Sc–Zr) alloys by Vlach, Martin, Cizek, Jakub, Kodetova, Veronika, Leibner, Michal, Cieslar, Miroslav, Harcuba, Petr, Bajtosova, Lucia, Kudrnova, Hana, Vlasak, Tomas, Neubert, Volkmar, Cernoskova, Eva, Kutalek, Petr

“…Precipitation stages in the hot-deformed Al-5.28wt.%Zn-3.21wt.%Mg-1.48wt.%Cu-0.24wt.%Si-0.24wt.%Mn-0.14wt.%Fe(−0.23wt.%Sc-0.19wt.%Zr) alloys were investigated…”
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Possibilities of Using Neuro-Fuzzy Models for Post-Processing of Hydrological Forecasts by Tomas Kozel, Tomas Vlasak, Petr Janal

“…When issuing hydrological forecasts and warnings for individual profiles, the aim is to achieve the best possible results. Hydrological forecasts themselves…”
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Creep behaviour of intermetallic Fe–28Al–3Cr alloy with Ce addition by Kratochvı́l, Petr, Pešička, Josef, Hakl, Jan, Vlasák, Tomáš, Hanus, Pavel

“…The creep behaviour of the intermetallic Fe–28Al–3Cr alloy with Ce additive was investigated at temperatures from 500 to 900 °C. The effect of the thermal…”
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Characterization of Lattice Defects in Refractory Metal High‐Entropy Alloy HfNbTaTiZr by Means of Positron Annihilation Spectroscopy by Čížek, Jakub, Vlasák, Tomáš, Melikhova, Oksana

“…Lattice defects in refractory metal high‐entropy alloy HfNbTaTiZr are investigated using positron lifetime spectroscopy combined with coincidence Doppler…”
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Effect of secondary phase particles on thermal stability of ultra-fine grained Mg-4Y-3RE alloy prepared by equal channel angular pressing by Minárik, Peter, Veselý, Jozef, Čížek, Jakub, Zemková, Mária, Vlasák, Tomáš, Krajňák, Tomáš, Kubásek, Jiří, Král, Robert, Hofman, Daniel, Stráská, Jitka

“…As-cast magnesium alloy WE43, containing yttrium and rare earth elements, was processed by equal channel angular pressing (ECAP). The processing led to a…”
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The Effect of Processing Route on Properties of HfNbTaTiZr High Entropy Alloy by Málek, Jaroslav, Zýka, Jiří, Lukáč, František, Vilémová, Monika, Vlasák, Tomáš, Čížek, Jakub, Melikhova, Oksana, Macháčková, Adéla, Kim, Hyoung-Seop

“…High entropy alloys (HEA) have been one of the most attractive groups of materials for researchers in the last several years. Since HEAs are potential…”
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Hydrogen absorption in Mg-Gd alloy by Vlček, Marián, Čížek, Jakub, Lukáč, František, Hruška, Petr, Smola, Bohumil, Stulíková, Ivana, Kudrnová, Hana, Minárik, Peter, Kmječ, Tomáš, Vlasák, Tomáš

“…Mg-Gd alloy containing 22 wt.% Gd was studied in the present work. As cast alloy contains Mg46Gd9 phase located at pockets along grain boundaries. In addition…”
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Thermal Stability of Microstructure of High-Entropy Alloys Based on Refractory Metals Hf, Nb, Ta, Ti, V, and Zr by Vlasák, Tomáš, Čížek, Jakub, Melikhova, Oksana, Lukáč, František, Preisler, Dalibor, Janeček, Miloš, Harcuba, Petr, Zimina, Mariia, Srba, Ondřej

“…In the present work, a series of high-entropy alloys based on refractory metals Hf, Nb, Ta, Ti, V, and Zr with various compositions have been systematically…”
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The Effect of Nb Addition on the Microstructure and the High-Temperature Strength of Fe3Al Aluminide by Kratochvíl, Petr, Švec, Martin, Král, Robert, Veselý, Jozef, Lukáč, Pavel, Vlasák, Tomáš

“…The microstructural and high-temperature mechanical properties of Fe–26Al– x Nb ( x  = 3 and 5 at. pct) are compared. The alloys were investigated “as cast”…”
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Creep behaviour of intermetallic Fe-28A1-3Cr alloy with Ce addition by Kratochvil, Petr, Pesicka, Josef, Hakl, Jan, Vlasak, Tomas, Hanus, Pavel

“…Iron aluminides are well known for their excellent resistance to oxidation and sulfidation. The main drawbacks are their bad workability at room temperature…”
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High temperature mechanical properties of Fe28Al4Cr alloy with additives TiB2 and Zr by Kratochvíl, Petr, Vodičková, Věra, Hakl, Jan, Vlasák, Tomáš, Hanus, Pavel, Pešička, Josef

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High-temperature creep properties of Fe–Al alloys modified by Zr by KARLIK, Miroslav, KRATOCHVIL, Petr, PESICKA, Josef, VLASAK, Tomas

“…Two Fe – Al alloys with Zr additions were prepared by vacuum induction melting and rolling at 1200 °C: a disordered (ferrite – A2) and a D0 -ordered one. The…”
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High-temperature mechanical properties of Fe-40 at.% Al based intermetallic alloys with C or Ti addition by KARLIK, Miroslav, HAUSILD, Petr, SIMA, Vladimir, MALEK, Premysl, VLASAK, Tomas

“…Tensile and creep properties of vacuum-induction-melted and cast Fe-40Al-1C and Fe-40Al-1Ti (at.%) were studied. The ingots were hot-rolled at 1200 °C to…”
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Residual life assessment of steam turbine casing containing crack defect by Hakl, Jan, Bielak, Ondrej, Vlasák, Tomáš

“…In steam turbine casing made of cast steel of type 0.6Cr0.5Mo0.25V (ČSN 42 2744), which run about 25% over designed life, several crack defects were found. The…”
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High temperature mechanical properties of Fe28Al4Cr alloy with additives TiB 2 and Zr by Kratochvíl, Petr, Vodičková, Věra, Hakl, Jan, Vlasák, Tomáš, Hanus, Pavel, Pešička, Josef

“…The research of the high temperature mechanical properties of Fe28Al4Cr with additives Ce, TiB 2 and Zr is completed using as additive Zr combined with TiB 2…”
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