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Publications
2017
Andres D., Dymacek P., Lacalle R., Alvarez J. A.
Influence of the Upper Die and of the Indenter Material on the Time to
Rupture of Small Punch Creep Tests
Key Engineering Materials 734 (2017) p. 119-127
Dymacek P., Dobes F., Kloc L.
Small Punch Testing of Sanicro 25 Steel and its Correlation with Uniaxial Tests
Key Engineering Materials, 734 (2017), p. 70-76
Dymacek P., Dobes F., Kloc L.
Determination of Mechanical Properties of Metallic Materials
from Very Small Volumes by Means of Small Punch Test
Key Engineering Materials, 741 (2017), p. 116-121
Kral P., Dvorak J., Kvapilova M., Blum W., Sklenicka V.
The influence of long-term annealing at room temperature on creep
behaviour of ECAP-processed copper
Materials Letters 188 (2017) p. 235-238

Q1 PUBLICATION:
Oldřich Schneeweiss, Martin Friák, Marie Dudová, David Holec, Mojmír Šob, Dominik Kriegner, Václav Holý, Přemysl Beran, Easo P. George, Jörg Neugebauer, and Antonín Dlouhý,
Magnetic properties of the CrMnFeCoNi high-entropy alloy,
Physical Review B 96 (2017) 014437-1 - 014437-13.

Description
We present experimental data showing that the equiatomic CrMnFeCoNi high-entropy alloy undergoes two magnetic transformations at temperatures below 100 K while maintaining its fcc structure down to 3 K. The first transition, paramagnetic to spin glass, was detected at 93 K and the second transition of the ferromagnetic type occurred at 38 K. Field-assisted cooling below 38 K resulted in a systematic vertical shift of the hysteresis curves. Strength and direction of the associated magnetization bias was proportional to the strength and direction of the cooling field and shows a linear dependence with a slope of 0.006 +/- 0.001 emu/T. The local magnetic moments of individual atoms in the CrMnFeCoNi quinary fcc random solid solution were investigated by ab initio (electronic density functional theory) calculations. Results of the numerical analysis suggest that, irrespective of the initial configuration of local magnetic moments, the magnetic moments associated with Cr atoms align antiferromagnetically with respect to a cumulative magnetic moment of their first coordination shell. The ab initio calculations further showed that the magnetic moments of Fe and Mn atoms remain strong (between 1.5 and 2 Bohr magneton), while the local moments of Ni atoms effectively vanish. These results indicate that interactions of Mn- and/or Fe-located moments with the surrounding magnetic structure account for the observed macroscopic magnetization bias.

Sklenicka V., Kucharova K., Kvapilova M., Kral P., Dvorak J.
Combination of Experiments and Continuum Damage Mechanics
Approach for Prediction of Creep Fracture in an Advanced 9%Cr Steel
Solid State Phenomena 258(2017) p.591-594
8th International Conference on Materials Structure & Micromechanics of Fracture (June 27-29, 2016, Brno, Czech Republic)
Betekhtin V. I., Kadomtsev A. G., Narykova M. V., Amosova O. V. ,Sklenicka V.
Defect Structure and Mechanical Stability of Microcrystalline Titanium Produced by Equal Channel Angular Pressing
Technical Physics Letters 43 (2017) p. 61-63
Sklenicka V., Kucharova K., Kral P., Kvapilova M., Dvorak J.
Applicability of empirical formulas and fractography
for assessment of creep life and creep fracture modes
of tempered martensitic 9%Cr steel
Kovove Materialy 55 (2017) p. 69–80
Betekhtin V. I., Sklenicka V., Kadomtsev A. G., Kolobov Yu. R., Narykova M. V.
Defect Structure and Thermomechanical Stability
of Nano- and Microcrystalline Titanium Obtained
by Different Methods of Intense Plastic Deformation
Physics of the Solid State 59 (2017) p. 960–966
Takizawa Y., Kajita T., Kral P., Masuda T., Watanabe K., Yumoto M., Otagiri Y., Sklenicka V., Horita Z.
Superplasticity of Inconel 718 after processing by high-pressure sliding (HPS)
Materials Science & Engineering A 682 (2017) p. 603-612
Svoboda J., Fisher F.D.
Incorporation of vacancy generation/annihilation into reactive diffusion
concept – Prediction of possible Kirkendall porosity
Computational Materials Science 127 (2017) p.136-140
Fischer F. D., Zickler G. A., Svoboda J.
Calibration of phase field parameters demonstrated on
kinetics of a shrinking single grain
Philosophical Magazine Letters (2017) p. 92-100
Fischer F. D., Zickler G. A., Svoboda J.
Modelling of grain refinement driven by negative grain boundary energy
Philosophical Magazine (2017) p. 1-15
Hackl K., Fischer, F. D., Svoboda, J.
A variational approach to the modelling of grooving in a
three-dimensional setting
Acta Materialia 129 (2017) p. 331-342
Svoboda J., Fischer F. D., Kozeschnik E.
Thermodynamic modelling of irreversible processes
EMU Notes in Mineralogy 16 (2017), chapter 7, p. 181-214
Fischer F. D., Svoboda J.
Thermodynamic Treatment of Diffusive Phase Transformation (Reactive Diffusion)
Handbook of Solid State Diffusion 1 (2017), chapter 8, p. 391-434
Zalezak T., Siska F., Stratil L., Luptakova N., Smid M., Bartkova D., Svoboda J., Dlouhy A.
A Numerical Analysis of Deformation Processes in Oxide Dispersion-Strengthened Materials – Influence of Dislocation-Particle Interactions
Solid State Phenomena 258 (2017) p. 106-109
2016
Wu X., Wollgramm P., Somsen C., Dlouhy A., Kostka A., Eggeler G.
Double minimum creep of single crystal Ni-base superalloys
Acta Materialia 112 (2016) p. 242-260
Yardley V., Povstugar I., Choi P., Raabe D., Parsa A. B., Kostka A., Somsen Ch., Dlouhy A., Neuking K., George E. P., Eggeler G.
On Local Phase Equilibria and the Appearance of Nanoparticles in the Microstructure of Single-Crystal Ni-Base Superalloys
Advanced engineering materials 18 (2016) p. 1556-1567
Otto F., Dlouhy A., Pradeep K.G., Kubenova M., Raabe D., Eggeler G., George E.P.
Decomposition of the single-phase high-entropy alloy CrMnFeCoNi
after prolonged anneals at intermediate temperatures
Acta Materialia 112 (2016) p. 40-52
Dobes F., Dymacek P.
Fracture-based correlation of uniaxial and small punch creep data
Theoretical and Applied Fracture Mechanics, 86 (2016), p. 34-38
Betekhtin V. I., Kolobov Yu. R., Golosova O. A., Dvorak J., Sklenicka V., Kardashev B. K., Kadomtsev A. G., Narykova M. V., Ivanov M. B.
Elastic modulus, microplastic properties and durability of titanium alloys for biomedical applications
Reviews on Advanced Materials Science 45 (2016) p. 42-51
Blum W., Dvořák J., Král P., Eisenlohr P., Sklenička V.
Effects of Grain Refinement by ECAP on the Deformation Resistance of
Al Interpreted in Terms of Boundary-Mediated Processes
Journal of Materials Science & Technology 32 (2016) p. 1309-1320
Krizik P., Balog M., Nosko M., Riglos M. V. C., Dvorak J., Bajana O.
Ultrafine-grained Al composites reinforced with in-situ Al3Ti filaments
Materials Science & Engineering A 657(2016) p. 6-14
Dymacek P.
Recent developments in small punch testing: Applications
at elevated temperatures
Theoretical and Applied Fracture Mechanics, 86 (2016), p. 25-33
Andres D., Dymacek P.
Study of the upper die clamping conditions in the small punch test
Theoretical and Applied Fracture Mechanics, 86 (2016), p. 117-123
Kral P., Dvorak J., Blum W., Kudryavtsev E., Zherebtsov S., Salishchev G.,
Kvapilova M., Sklenicka V.
Creep study of mechanisms involved in low-temperature superplasticity
of UFG Ti-6Al-4V processed by SPD
Materials Characterization 116 (2016) p. 84-90
Kuncicka L., Kocich R., Kral P., Pohludka M., Marek M.
Effect of strain path on severely deformed aluminium
Materials Letters 180 (2016) p. 280-283
Kocich R., Kuncicka L., Kral P., Machackova A.
Sub-structure and mechanical properties of twist channel angular
pressed aluminium
Materials Characterization 119 (2016) p. 75-83
Horvath J., Kral P., Janovec J.
The effect of σ-phase formation on long-term durability of welding joints in SUPER 304H steels
Acta Physica Polonica A 130 (2016) p. 960-962
Kocich R., Kuncicka L., Kral P., Lowe Terry C.
Texture, deformation twinning and hardening in a newly developed Mg-Dy-Al-Zn-Zr alloy processed with high pressure torsion
Materials and Design 90 (2016) p. 1092-1099
Kral P., Dvorak J., Jäger A., Kvapilova M., Horita Z., Sklenicka V.
Creep properties of aluminium processed by ECAP
Kovove Materialy 54 (2016) p. 441-451
Filip Siska, Ludek Stratil, Miroslav Smid, Natalia Luptakova, Tomas Zalezak, Denisa Bartkova: Deformation and fracture behavior of the P91 martensitic steel at high temperatures, Materials Science & Engineering A 672 (2016) 1–6.
Sklenicka V., Kucharova K., Svobodova M., Kvapilova M., Kral P., Horvath L.:
Creep properties in similar weld joint of a thick-walled P92 steel pipe
Materials Characterization 119 (2016) p. 1-12
Sklenicka V., Kucharova K., Kvapilova M., Kral P., Dvorak J.:
Creep Damage and Fracture in Advanced Tungsten Modified 9%Cr Ferritic Steel
Key Engineering Materials 713 (2016) p. 183 - 186
Fischer F. D., Svoboda J., Antretter T., Kozeschnik E.:
Stress relaxation by power-law creep during growth of a misfitting precipitate
International Journal of Solids and Structures 96 (2016) p. 74-80
Riedel H., Svoboda J.:
A model for strain hardening, recovery, recrystallization and grain
growth with applications to forming processes of nickel base alloys
Materials Science & Engineering A 665 (2016) p. 175-183
Svoboda J., Fratzl P., Zickler G. A., Fischer F. D.:
A new treatment of transient grain growth
Acta Materialia 115 (2016) p. 442-447
Spusta T., Svoboda J., Maca K.:
Study of pore closure during pressure-less sintering of advanced oxide
ceramics
Acta Materialia 115 (2016) p. 347-353
Svoboda J., Shan Y. V., Kozeschnik E., Fischer F. D.:
A thermokinetic model for Mg–Si couple
formation in Al–Mg–Si alloys
Modelling and Simulation in Materials Science and Engineering 24 (2016) Article Number: 035021
Fischer F. D., Hackl K., Svoboda J.:
Improved thermodynamic treatment of vacancy-mediated diffusion
and creep
Acta Materialia 108 (2016) p. 347-354
Svoboda J., Fischer F. D., Riedel H., Kozeschnik E.:
Precipitate growth in multi-component systems with stress
relaxation by diffusion and creep
International Journal of Plasticity 82 (2016) p. 112-126
Abart R., Svoboda J., Jerabek P., Karadeniz E. P., Habler G.
Interlayer growth kinetics of a binary solid-solution
based on the thermodynamic extremal principle:
application to the formation of spinel at periclase-corundum contacts
American Journal of Science 316 (2016) p. 309–328
Svoboda J., Fischer F.D.:
A self-consistent model for thermodynamics of multicomponent
solid solutions
Scripta Materialia 123 (2016) p. 154-157
Masek B., Khalaj O., Novy Z., Kubina T., Jirkova H., Svoboda J., Stadler C.
Behaviour of new ODS alloys under single and multiple deformation
Materials and Technology 50 (2016) p. 891-898
Information leaflet
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central european institute of technology


H2020-MSCA-ITN-2014-ETN




Last update
19. 09. 2017