Search Results - "Stratil, Ludek"

Numerical study of stress distribution and size effect during AZ31 nanoindentation by Siska, Filip, Guo, Tingting, Stratil, Ludek, Cizek, Jan, Barnett, Matthew

“…[Display omitted] •Twins initiate at higher stress during nanoindentation compare to uniaxial loading.•The CRSS values determine the position of the twin shear…”
Get full text

Cold Spray metal powder deposition with 9 %Cr-steel applied for the HCPB First Wall fabrication: Proof of concept and options for ODS steel processing by Neuberger, Heiko, Hernandez, Francisco, Rieth, Michael, Bonnekoh, Carsten, Stratil, Ludek, Dlouhy, Ivo, Dymacek, Petr, Müller, Oliver, Adler, Lucas, Kunert, Ulrich

“…•Proof of concept for manufacturing process combining AM with Cold Spray metal powder deposition and diffusion welding.•Suitable for manufacturing of complex…”
Get full text

Microstructure Evolution in ODS Alloys with a High-Volume Fraction of Nano Oxides by Svoboda, Jiří, Horník, Vít, Stratil, Luděk, Hadraba, Hynek, Mašek, Bohuslav, Khalaj, Omid, Jirková, Hana

“…Existing oxide dispersion strengthened (ODS) alloys are, besides Ni-based superalloy single crystals, the most creep-resistant materials. The creep resistance…”
Get full text

Liquid lead resistance and cracking of novel 1Al-Sc-Y ODS Eurofer steel by Pazderová, Martina, Hojná, Anna, Hadraba, Hynek, Stratil, Luděk, Šiška, Filip, Chocholoušek, Michal, Bricín, David, Čížek, Jan

“…•9 %Cr ODS steel with coarse grains strengthened by Cr-rich carbides and Al2O3 oxides and by fine dispersion of al and Y-Sc-Al nano-oxides.•The content of 1…”
Get full text

Numerical analysis of twin-precipitate interactions in magnesium alloys by Siska, Filip, Stratil, Ludek, Cizek, Jan, Guo, Tingting, Barnett, Matthew

“…The present paper performs a two-dimensional numerical study of the interactions between {101¯2} tensile twin and precipitates aligned along basal planes in…”
Get full text

Development of advanced Fe–Al–O ODS alloy microstructure and properties due to heat treatment by Fintová, Stanislava, Kuběna, Ivo, Luptáková, Natália, Jarý, Milan, Šmíd, Miroslav, Stratil, Luděk, Šiška, Filip, Svoboda, Jiří

“…Fe–Al–O ODS alloy prepared via mechanical alloying was subjected to three different heat treatments. Material basic state exhibited a fine-grained (300–500 nm)…”
Get full text

Effects of grains‘ morphology on strengthening mechanisms in ODM401 14Cr ODS steel at high temperatures by Siska, Filip, Hadraba, Hynek, Stratil, Ludek, Fintova, Stanislava, Kubena, Ivo

“…The effect of grain orientation on the mechanical behavior of the 14Cr ODS steel (ODM401) at temperatures 400–800 °C is analyzed. The tensile and stress…”
Get full text

Numerical analysis of twin thickening process in magnesium alloys by Siska, Filip, Stratil, Ludek, Cizek, Jan, Ghaderi, Alireza, Barnett, Matthew

“…A finite element study of the stress field evolution around the {101¯2} tensile twin of different thickness in magnesium alloy is performed. The system is…”
Get full text

Grain size manipulation of the Eurofer steel via mechanical alloying by Hadraba, Hynek, Stratil, Ludek, Siska, Filip, Chlup, Zdenek, Cizek, Jan, Jambor, Michal, Bertolla, Luca

“…The Eurofer steel has been developed as a reference structural material for future nuclear fusion power plants. The conventional variant of the steel is…”
Get full text

The Influence of Aluminum Content on Oxidation Resistance of New-Generation ODS Alloy at 1200 °C by Stratil, Luděk, Horník, Vít, Dymáček, Petr, Roupcová, Pavla, Svoboda, Jiří

“…The aim of the paper is to evaluate the effect of aluminum content on the oxidation resistance of new-generation of oxide dispersion strengthened (ODS) alloy…”
Get full text

Fracture toughness of a lamellar orientation-controlled TiAl-based alloy processed by either one-step or two-step compression at high temperature by Hasegawa, Makoto, Sakurai, Koji, Stratil, Ludek, Dlouhy, Ivo, Fukutomi, Hiroshi

“…In this work, the effects of lamellae orientation and the distribution of fine grains and fine lamellar colonies on the fracture toughness of…”
Get full text

Twinning in CoCrFeNiMn high entropy alloy induced by nanoindentation by Siska, Filip, Cech, Jaroslav, Hausild, Petr, Hadraba, Hynek, Chlup, Zdenek, Husak, Roman, Stratil, Ludek

“…The nanoindentation tests of CoCrFeNiMn high entropy alloy prepared by mechanical alloying route have been performed. Pop-ins on loading curves have been…”
Get full text

Strengthening mechanisms of different oxide particles in 9Cr ODS steel at high temperatures by Siska, Filip, Stratil, Ludek, Hadraba, Hynek, Fintova, Stanislava, Kubena, Ivo, Hornik, Vit, Husak, Roman, Bartkova, Denisa, Zalezak, Tomas

“…The influence of different oxide particles on deformation mechanisms of 9Cr ODS steels at temperatures 400–600 °C is tested. Two ODS variants with Al2O3 and…”
Get full text

High temperature deformation mechanisms in the 14% Cr ODS alloy by Siska, Filip, Stratil, Ludek, Hadraba, Hynek, Fintova, Stanislava, Kubena, Ivo, Zalezak, Tomas, Bartkova, Denisa

“…The stress relaxation behavior of the ODM401 ODS steel is tested at the temperature range 400–800°C in order to investigate the deformation mechanisms. The…”
Get full text

Deformation and fracture behavior of the P91 martensitic steel at high temperatures by Siska, Filip, Stratil, Ludek, Smid, Miroslav, Luptakova, Natalia, Zalezak, Tomas, Bartkova, Denisa

“…The stress relaxation behavior of the P91 martensitic steel is tested for the temperature range 400–600°C in order to investigate the plastic deformation and…”
Get full text

Evaluation of conservative and innovative manufacturing routes for gas cooled Test Blanket Module and Breeding Blanket First Walls by Neuberger, Heiko, Rey, Joerg, Arbeiter, Frederik, Hernandez, Francisco, Ruck, Sebastian, Koehly, Christina, Stratil, Ludek, Niewöhner, Reinhard, Felde, Alexander

“…•Using Electrical Discharge Machining in combination with forming is an option to manufacture a U-shaped First Wall without welding.•Additive Manufacturing…”
Get full text

Advances in Additive Manufacturing of fusion materials by Neuberger, Heiko, Hernandez, Francisco, Ruck, Sebastian, Arbeiter, Frederik, Bonk, Simon, Rieth, Michael, Stratil, Ludek, Müller, Oliver, Volker, Kai-Uwe

“…Recent analysis result in significant impact on the design of the Helium Cooled Pebble Bed (HCPB) Breeding Blanket (BB). Especially the main demanding…”
Get full text

Survey of oxide candidate for advanced 9%, 14% and 17%Cr ODS steels for fusion applications by Hadraba, Hynek, Husak, Roman, Stratil, Ludek, Siska, Filip, Chlup, Zdenek, Puchy, Viktor, Michalicka, Jan

“…•High Cr steels were prepared by mechanical alloying from atomic powders.•Powder was compacted by spark-plasma-sintering process.•Oxide dispersion was created…”
Get full text

Fracture behavior of the ODS steels prepared by internal oxidation by Stratil, Ludek, Siska, Filip, Hadraba, Hynek, Bartkova, Denisa, Fintova, Stanislava, Puchy, Viktor

“…•Internal oxidation produces particle dispersion that significantly improves strength of the steel.•Aluminum oxide particles improve fracture toughness as…”
Get full text

Microstructure and impact properties of ferritic ODS ODM401 (14%Cr-ODS of MA957 type) by Hadraba, Hynek, Kazimierzak, Bohumil, Stratil, Ludek, Dlouhy, Ivo

“…The oxide dispersion strengthened (ODS) steel ODM401 is one of the ODS steels developed during the 1960–1970s as a structural tubing material for fast breeder…”
Get full text