Search Results - "Stratil, Luděk"
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Liquid lead resistance and cracking of novel 1Al-Sc-Y ODS Eurofer steel
Published in Journal of nuclear materials (15-12-2024)“…•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…”
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2
Development of advanced Fe–Al–O ODS alloy microstructure and properties due to heat treatment
Published in Journal of materials research (28-10-2020)“…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)…”
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3
The Influence of Aluminum Content on Oxidation Resistance of New-Generation ODS Alloy at 1200 °C
Published in Metals (Basel ) (01-11-2020)“…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…”
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4
Microstructure Evolution in ODS Alloys with a High-Volume Fraction of Nano Oxides
Published in Metals (Basel ) (01-12-2018)“…Existing oxide dispersion strengthened (ODS) alloys are, besides Ni-based superalloy single crystals, the most creep-resistant materials. The creep resistance…”
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5
Numerical study of stress distribution and size effect during AZ31 nanoindentation
Published in Computational materials science (01-01-2017)“…[Display omitted] •Twins initiate at higher stress during nanoindentation compare to uniaxial loading.•The CRSS values determine the position of the twin shear…”
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6
Performance of Sc-Y-ODS variant of Eurofer steel in stagnant PbLi at 600°C
Published in Journal of nuclear materials (01-03-2023)“…•Sc-Y-ODS variant of Eurofer was developed by mechanical alloying from elemental powders and precipitation of oxides.•A solution-based attack is the dominant…”
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7
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
Published in Nuclear materials and energy (01-06-2023)“…•Proof of concept for manufacturing process combining AM with Cold Spray metal powder deposition and diffusion welding.•Suitable for manufacturing of complex…”
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8
Numerical analysis of twin-precipitate interactions in magnesium alloys
Published in Acta materialia (01-01-2021)“…The present paper performs a two-dimensional numerical study of the interactions between {101¯2} tensile twin and precipitates aligned along basal planes in…”
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9
Effects of grains‘ morphology on strengthening mechanisms in ODM401 14Cr ODS steel at high temperatures
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (05-09-2022)“…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…”
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10
Numerical analysis of twin thickening process in magnesium alloys
Published in Acta materialia (01-02-2017)“…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…”
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11
Grain size manipulation of the Eurofer steel via mechanical alloying
Published in Journal of materials science (01-07-2024)“…The Eurofer steel has been developed as a reference structural material for future nuclear fusion power plants. The conventional variant of the steel is…”
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12
Fracture toughness of a lamellar orientation-controlled TiAl-based alloy processed by either one-step or two-step compression at high temperature
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (04-04-2018)“…In this work, the effects of lamellae orientation and the distribution of fine grains and fine lamellar colonies on the fracture toughness of…”
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13
Twinning in CoCrFeNiMn high entropy alloy induced by nanoindentation
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (15-05-2020)“…The nanoindentation tests of CoCrFeNiMn high entropy alloy prepared by mechanical alloying route have been performed. Pop-ins on loading curves have been…”
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14
Strengthening mechanisms of different oxide particles in 9Cr ODS steel at high temperatures
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (08-08-2018)“…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…”
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15
High temperature deformation mechanisms in the 14% Cr ODS alloy
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (24-03-2017)“…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…”
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16
Deformation and fracture behavior of the P91 martensitic steel at high temperatures
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (30-08-2016)“…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…”
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17
Evaluation of conservative and innovative manufacturing routes for gas cooled Test Blanket Module and Breeding Blanket First Walls
Published in Fusion engineering and design (01-09-2019)“…•Using Electrical Discharge Machining in combination with forming is an option to manufacture a U-shaped First Wall without welding.•Additive Manufacturing…”
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Advances in Additive Manufacturing of fusion materials
Published in Fusion engineering and design (01-06-2021)“…Recent analysis result in significant impact on the design of the Helium Cooled Pebble Bed (HCPB) Breeding Blanket (BB). Especially the main demanding…”
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Survey of oxide candidate for advanced 9%, 14% and 17%Cr ODS steels for fusion applications
Published in Fusion engineering and design (01-11-2017)“…•High Cr steels were prepared by mechanical alloying from atomic powders.•Powder was compacted by spark-plasma-sintering process.•Oxide dispersion was created…”
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20
Fracture behavior of the ODS steels prepared by internal oxidation
Published in Fusion engineering and design (01-11-2017)“…•Internal oxidation produces particle dispersion that significantly improves strength of the steel.•Aluminum oxide particles improve fracture toughness as…”
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