Ústav fyziky materiálů AV ČR, v. v. i. > Zaměstnanci > Kruml Tomáš

prof. Mgr. Tomáš Kruml, CSc.

Místnost423
Telefon+420 532 290 464
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Researcher IDG-1267-2014
Poziceředitel - ÚFM AV ČR, vědecký pracovník - Skupina nízkocyklové únavy

Osobní informace
  • 1985-1990 Vysokoškolské studium
    Masarykova univerzita v Brně, Přirodovědecká fakulta, obor Fyzika pevných látek
  • 1992-1996 Postgraduální doktorské studium
    Ústav fyziky materiálů AV ČR, Brno, obor Fyzikální metalurgie a mezní stavy materiálů
  • 1996-1997 Ecole Polytechnique Fédérale, Lausanne/Švýcarsko
    Post-doc pobyt na EPFL, odd. Fyziky, Ústav jaderného inženýrství
  • 1998-1999 ÚFM AV ČR
    Vědecký pracovník ve skupině nízkocyklové únavy ÚFM AV ČR
  • 2000-2003 EPFL Lausanne
    Odborný asistent na EPFL
  • 2003-2005 Ecole des Mines, Nancy/Francie
    Vysokoškolský professor na Ecole des Mines
  • od r. 2005 ÚFM AV ČR
    Vědecký pracovník ve skupině nízkocyklové únavy ÚFM AV ČR, 2011 - 2022 vedoucí této skupiny
  • od r. 2022 ÚFM AV ČR
    Ředitel ÚFM AV ČR, v. v. i.

    • Činnost
    Detailní popis mechanismů plastické deformace materiálů, výzkum degradačních procesů spojených s cyklickou deformací, vývoj experimentálních metod pro mechanické testování tenkých vrstev.
    Materiály: vysokoteplotní intermetalika (TiAl, Ni3Al, superslitiny), progresivní druhy ocelí (ODS, duplexní, austenitické), slitiny s tvarovou pamětí (NiTi), tenké vrstvy (Al–Cu, TiN), modelové materiály (Cu, Ge)

    2024

    Roth J., Šulák I., Kruml T., Polkowski W., Dudziak T., Böhlke T., Krupp U., Jahns K.: Establishing a process route for additive manufacturing of NiCu-based Alloy 400: an alignment of gas atomization, laser powder bed fusion, and design of experiments. Int. J. Adv. Manufact. Technol. 134 (2024) 3433-3452

    Polák J., Babinský T., Vražina T., Kruml T.: The role of extrusions and intrusions in the initiation and intergranular growth of fatigue cracks. Adv. Eng. Mater. 0 (2024) 2400313

    Polák J., Man J., Kruml T.: The sources of cyclic slip irreversibility. Acta Mater. 267 (2024) 119709

    Šulák I., Chlupová A., Záležák T., Kuběna I., Roth J., Jahns K., Krupp U., Kruml T.: High-temperature fatigue and creep performance of additively manufactured NiCu-based alloy. Procedia Struct. Integr. 52 (2024) 143-153

    Hloch S., Poloprudský J., Šiška F., Babinský T., Nag A., Chlupová A., Kruml T.: Erosion development in AISI 316L stainless steel under pulsating water jet treatment. Engineering Science and Technology 50 (2024) 101630

    Polák J., Jadlovský D., Kruml T.: Extrusions and intrusions in the cyclic plastic zone of the growing fatigue crack in polycrystalline copper. Int. J. Fatigue 179 (2024) 108063

    Polák J., Babinský T., Vražina T., Kruml T.: Mechanism of intergranular fatigue crack growth in copper polycrystal. Int. J. Fatigue 182 (2024) 108190

    Vražina T., Šulák I., Nowak B., Verma B., Krupp U., Kruml T.: Fatigue lifetime assessment and crack propagation of Ni-based VDM Alloy 699 XA produced by additive manufacturing. Procedia Struct. Integr. 52 (2024) 43-51

    Říha Z., Zeleňák M., Nag A., Poloprudský J., Kruml T., Hloch S.: A study of the erosion characteristics of an EN AE-6060 aluminium alloy processed using middle and high power continuous and modulated water jets. Wear 536-537 (2024) 205154


    2023

    Gröger R., Holzer J., Kruml T.: Twinning and antitwinning in body-centered cubic metals. Comp. Mater. Sci. 216 (2023) 111874

    Chlupová A., Hloch S., Nag A., Šulák I., Kruml T.: Effect of pulsating water jet processing on erosion grooves and microstructure in the subsurface layer of 25CrMo4 (EA4T) steel. Wear 524-525 (2023) 204774

    Zelený M., Ostapovec A., Fridrich L., Šesták P., Heczko M., Kruml T.: On mechanical twinning in tetragonal lattice. Philos. Mag. 103 (2023) 119-136

    Chlupová A., Šulák I., Kuběna I., Kruml T., Roth J., Jahns K.: Comparison of microstructure and properties of nickel-copper alloy prepared by casting and laser powder bed fusion process. Mater. Sci. Forum 1082 (2023) 171-176

    Mikmeková Š., Man J., Ambrož O., Jozefovič P., Čermák J., Järvenpää A., Jaskari M., Materna J., Kruml T.: High-resolution characterization of deformation induced martensite in large areas of fatigued austenitic stainless steel using deep learning. Metals 13 (2023) 1039

    Man J., Blinn B., Šulák I., Kuběna I., Smaga M., Chlup Z., Kruml T., Beck T., Polák J.: Formation of deformation induced martensite in fatigued 316L steels manufactured by selective laser melting (SLM). Procedia Struct. Integr. 43 (2023) 203-208

    Poczklán L., Polák J., Kruml T.: Comparison of critical plane models based on multiaxial low-cycle fatigue tests of 316L steel. Int. J. Fatigue 171 (2023) 107569

    Janů L., Dvořáková E., Polášková K., Buchtelová M., Ryšánek P., Chlup Z., Kruml T., Galmiz O., Nečas D., Zajíčková L.: Enhanced adhesion of electrospun polycaprolactone nanofibers to plasma-modified polypropylene fabric. Polymers 15 (2023) 1686


    2022

    Slávik O., Vojtek T., Poczklán L., Tinoco Navarro H., Kruml T., Hutař P., Šmíd M.: Improved description of low-cycle fatigue behaviour of 316L steel under axial, torsional and combined loading using plastic J-integral. Theor. Appl. Fract. Mech. 118 (2022) 103212

    Poloprudský J., Nag A., Kruml T., Hloch S.: Effects of liquid droplet volume and impact frequency on the integrity of Al alloy AW2014 exposed to subsonic speeds of pulsating water jets. Wear 488-489 (2022) 204136


    2021

    Poloprudský J., Chlupová A., Kruml T., Hloch S.: Identification of Local Microplasticity on Ti6Al4V After Impingement of Periodically Acting Water Clusters. Lecture Notes in Mechanical Engineering Advances (2021) 63-74

    Poloprudský J., Chlupová A., Kruml T., Hloch S., Hlaváček P., Foldyna J.: Effect of Standoff Distance on the Erosion of Various Materials. Lecture Notes in Mechanical Engineering Advances (2021) 164-171

    Říha Z., Zeleňák M., Kruml T., Poloprudský J.: Comparison of the disintegration abilities of modulated and continuous water jets. Wear 478-479 (2021) 203891

    Vinogradov A., Kruml T., Heczko M., Mazánová V., Linderov M.: Kinetics of cyclically-induced mechanical twinning in gamma-TiAl unveiled by a combination of acoustic emission, neutron diffraction and electron microscopy. Acta Mater. 212 (2021) 116921

    Poloprudský J., Chlupová A., Šulák I., Kruml T., Hloch S.: Surface and Subsurface Analysis of Stainless Steel and Titanium Alloys Exposed to Ultrasonic Pulsating Water Jet. Materials 14 (2021) 5212

    Holzer J., Chlup Z., Kruml T., Gröger R.: Plastic deformation of magnetically isotropic Cr single crystals compressed at 77 K. Int. J. Plast. 138 (2021) 102938

    Tinoco Navarro H., Holzer J., Pikálek T., Sobota J., Fořt T., Matějka M., Kruml T., Hutař P.: Determination of the yield stress in Al thin film by applying bulge test. Journal of Physics: Conference Series 1777 (2021) 012030

    Tinoco Navarro H., Hutař P., Kruml T., Holzer J.: Modeling of elastoplastic behavior of freestanding square thin films under bulge testing. Acta Mech. 232 (2021) 2715-2731

    Babinský T., Kuběna I., Šulák I., Kruml T., Tobiáš J., Polák J.: Surface relief evolution and fatigue crack initiation in René 41 superalloy cycled at room temperature. Mater. Sci. Eng. A 819 (2021) 141520


    2020

    Mazánová V., Heczko M., Slone C., Kuběna I., Tobiáš J., George E., Kruml T., Polák J., Mills M.: SEM & STEM Multi-scale Characterization of Fatigue Damage in CrCoNi Medium-entropy Alloy with Fully Recrystallized Microstructure. Microscopy and Microanalysis 26 (Supp (2020) 2224

    Tinoco Navarro H., Hutař P., Merle B., Göken M., Kruml T.: Fracture Toughness Evaluation of a Cracked Au Thin Film by Applying a Finite Element Analysis and Bulge Test. Key Eng. Mater. 827 (2020) 196-202

    Chlupová A., Heczko M., Obrtlík K., Dlouhý A., Kruml T.: Effect of heat-treatment on the microstructure and fatigue properties of lamellar gama-TiAl alloyed with Nb, Mo and/or C. Mater. Sci. Eng. A 786 (2020) 139427

    Chlupová A., Poczklán L., Man J., Mazánová V., Heczko M., Kruml T.: Character of Fatigue Damage under Axial, Torsional and Biaxial Loading of 316L Stainless Steel. Defect Diffus. Forum 405 (2020) 264-270

    Hloch S., Srivastava M., Nag A., Müller M., Hromasová M., Svobodová J., Kruml T., Chlupová A.: Effect of pressure of pulsating water jet moving along stair trajectory on erosion depth, surface morphology and microhardness. Wear 452-453 (2020) 203278


    2019

    Husák R., Hadraba H., Chlup Z., Heczko M., Kruml T., Puchý V.: ODS EUROFER Steel Strengthened by Y-(Ce, Hf, La, Sc, and Zr) Complex Oxides. Metals 9 (2019) 1148

    Poczklán L., Mazánová V., Gamanov Š., Kruml T.: Fatigue crack growth rate in axial, torsional and multiaxial mode in 316L austenitic steel. Procedia Struct. Integr. 23 (2019) 269-274

    Kuběna M., Eliáš M., Zajíčková L., Poduška J., Kruml T.: On the Tensile Tests of Polyurethane and Its Composites with Carbon Nanotubes. Adv. Mater. Sci. Eng. 2019 (2019) 6598452

    Mazánová V., Heczko M., Škorík V., Chlupová A., Polák J., Kruml T.: Microstructure and martensitic transformation in 316L austenitic steel during multiaxial low cycle fatigue at room temperature. Mater. Sci. Eng. A 767 (2019) 138407

    Tinoco Navarro H., Holzer J., Pikálek T., Buchta Z., Lazar J., Chlupová A., Kruml T., Hutař P.: Determination of elastic parameters of Si3N4 thin films by means of a numerical approach and bulge tests. Thin Solid Films 672 (2019) 66-74


    2018

    Heczko M., Esser B., Smith T., Beran P., Mazánová V., McComb D., Kruml T., Polák J., Mills M.: Atomic resolution characterization of strengthening nanoparticles in a new high-temperature-capable 43Fe-25Ni-22.5Cr austenitic stainless steel. Mater. Sci. Eng. A 719 (2018) 49-60

    Gröger R., Chlup Z., Kuběna I., Kruml T.: Slip activity in molybdenum single crystals compressed at 77 K. Philos. Mag. 98 (2018) 2749-2768

    Wärner H., Calmunger M., Chai G., Polák J., Petráš R., Heczko M., Kruml T., Johansson S., Moverare J.: Fracture and Damage Behavior in an Advanced Heat Resistant Austenitic Stainless Steel During LCF, TMF and CF. Procedia Struct. Integr. 13 (2018) 843-848

    Spätig P., Heczko M., Kruml T., Seifert H.: Influence of mean stress and light water reactor environment on fatigue life and dislocation microstructures of 316L austenitic steel. J. Nucl. Mater. 509 (2018) 15-28


    2017

    Holzer J., Pikálek T., Buchta Z., Lazar J., Tinoco Navarro H., Chlupová A., Kruml T.: Development of the bulge test equipment for measuring mechanical properties of thin films. METAL 2017 Conf. Proc 26 (2017) 1053-1058

    Heczko M., Esser B., Smith T., Beran P., Mazánová V., Kruml T., Polák J., Mills M.: On the origin of extraordinary cyclic strengthening of the austenitic stainless steel Sanicro 25 during fatigue at 700 C. J. Mater. Res. 32 (2017) 4342-4353

    Chlupová A., Heczko M., Obrtlík K., Beran P., Kruml T.: Effect of Alloying and Thermal Processing on Mechanical Properties of TiAl Alloys. Solid State Phenom. 258 (2017) 501-505

    Mazánová V., Škorík V., Kruml T., Polák J.: Cyclic response and early damage evolution in multiaxial cyclic loading of 316L austenitic steel. Int. J. Fatigue 100 (2017) 466-476

    Man J., Chlupová A., Kuběna I., Kruml T., Man O., Järvenpää A., Karjalainen L., Polák J.: LCF behaviour of 301LN steel: coarse-grained vs. UFG-bimodal structure. Eighth International Conference on Low Cycle Fatigue 1 (2017) 205-210

    Heczko M., Polák J., Kruml T.: Microstructure and dislocation arrangements in Sanicro 25 steel fatigued at ambient and elevated temperatures. Mater. Sci. Eng. A 680 (2017) 168-181

    Hutař P., Poduška J., Šmíd M., Kuběna I., Chlupová A., Náhlík L., Polák J., Kruml T.: Short fatigue crack behaviour under low cycle fatigue regime. Int. J. Fatigue 103 (2017) 207-215

    Heczko M., Spätig P., Seifert H., Kruml T.: Correlation between Dislocation Structures and Mechanical Fatigue Response of 316L Austenitic Steel Loaded with and without Mean Stress at High Temperature in Air and Water Environment. Solid State Phenom. 258 (2017) 534-537

    Mazánová V., Polák J., Škorík V., Kruml T.: Multiaxial elastoplastic cyclic loading of austenitic 316L steel. Frattura ed Integrita Strutturale 11 (2017) 162-169

    Karol M., Chlupová A., Mazánová V., Kruml T.: Fatigue crack initiation and growth in 316L steel in torsional cyclic loading. Eng. Mech. 23 (2017) 434-437


    2016

    Hutař P., Poduška J., Chlupová A., Šmíd M., Kruml T., Náhlík L.: Description of short fatigue crack propagation under low cycle fatigue regime. Procedia Struct. Integr. 2 (2016) 3009-3016

    Beran P., Heczko M., Kruml T., Panzner T., Petegem S.: Complex investigation of deformation twinning in gama-TiAl byTEM and neutron diffraction. J. Mech. Phys. Solids 95 (2016) 647-662

    Chlupová A., Chlup Z., Kruml T.: Fatigue properties and microstructure of quasicrystalline AlFeCrTi alloy. Int. J. Fatigue 91 (2016) 251-256

    Chlupová A., Heczko M., Obrtlík K., Polák J., Roupcová P., Beran P., Kruml T.: Mechanical properties of high niobium TiAl alloys doped with Mo and C. Mater. & Design 99 (2016) 284-292

    Kuběna I., Kruml T., Polák J.: Behaviour of ODS Steels in Cyclic Loading. Trans. Indian Inst. Metals 69 (2016) 309-313

    Polák J., Petráš R., Heczko M., Kruml T., Chai G.: Evolution of the cyclic plastic response of Sanicro 25 steel cycled at ambient and elevated temperatures. Int. J. Fatigue 83 (2016) 75-83

    Weidner A., Kolmorgen R., Kuběna I., Kulawinski D., Kruml T., Biermann H.: Decomposition and Precipitation Process During Thermo-mechanical Fatigue of Duplex Stainless Steel. Metall. Mater. Trans. A 47 (2016) 2112-2124


    2015

    Kuběna I., Polák J., Plocinski T., Hébert C., Škorík V., Kruml T.: Microstructural stability of ODS steels in cyclic loading. Fatigue Fract. Eng. Mater. Struct. 38 (2015) 936-947

    Guth S., Petráš R., Škorík V., Kruml T., Man J., Lang K., Polák J.: Influence of dwell times on the thermomechanical fatigue behavior of a directionally solidified Ni-base superalloy. Int. J. Fatigue 80 (2015) 426-433


    2014

    Hutař P., Kuběna I., Šmíd M., Ševčík M., Kruml T., Náhlík L.: Description of small fatigue crack propagation in ODS steel. Adv. Mater. Res. 891-892 (2014) 911-916

    Polák J., Petráš R., Heczko M., Kuběna I., Kruml T., Chai G.: Low cycle fatigue behavior of Sanicro 25 steel at room and at elevated temperature. Mater. Sci. Eng. A 615 (2014) 175-182

    Kruml T., Chlupová A., Obrtlík K.: Cyclic deformation of a modern TiAl alloy at high temperatures. Adv. Mater. Res. 891-892 (2014) 1131-1136

    Chlupová A., Obrtlík K., Beran P., Heczko M., Polák J., Kruml T.: Monotonic and cyclic properties of TiAl alloys doped with Nb, Mo and C. Procedia Eng. 74 (2014) 405-408

    Kuběna I., Polák J., Marmy P., Kruml T.: A comparison of microstructure evolution due to fatigue loading in Eurofer 97 and ODS Eurofer steels. Procedia Eng. 74 (2014) 401-404

    Hutař P., Kuběna I., Ševčík M., Šmíd M., Kruml T., Náhlík L.: Small fatigue crack propagation in Y2O3 strengthened steels. J. Nucl. Mater. 452 (2014) 370-377

    Beran P., Petrenec M., Heczko M., Smetana B., Žaludová M., Šmíd M., Kruml T., Keller L.: In-situ neutron diffraction study of thermal phase stability in a gamma-TiAl based alloy doped with Mo and/or C. Intermetallics 54 (2014) 28-38

    Polák J., Petráš R., Heczko M., Kruml T., Chai G.: Analysis of Cyclic Plastic Response of Heat Resistant Sanicro 25 Steel at Ambient and Elevated Temperatures. Procedia Eng. 74 (2014) 68-73

    Kruml T., Obrtlík K.: Microstructure degradation in high temperature fatigue of TiAl alloy. Int. J. Fatigue 65 (2014) 28-32


    2013

    Saada G., Kruml T.: Removal of plastic instabilities by reversal of the applied stress. Philos. Mag. 93 (2013) 256-271

    Kruml T., Martin J.: Dislocation densities and internal stress in Ni3Al. Philos. Mag. 93 (2013) 50-59

    Polák J., Obrtlík K., Petrenec M., Man J., Kruml T.: Mechanisms of high temperature damage in elastoplastic cyclic loading of nickel superalloys and TiAl intermetallics. Procedia Eng. 55 (2013) 114-122

    Kuběna I., Kruml T.: Fatigue life and microstructure of ODS steels. Eng. Fract. Mech. 103 (2013) 39-47


    2012

    Fournier B., Steckmeyer A., Rouffie A., Malaplate J., Garnier J., Ratti M., Wident P., Ziolek L., Tournie I., Rabeau V., Gentzbittel J., Kruml T., Kuběna I.: Mechanical behaviour of ferritic ODS steels - Temperature dependancy and anisotropy. J. Nucl. Mater. 430 (2012) 142-149

    Kuběna I., Fournier B., Kruml T.: Effect of microstructure on low cycle fatigue properties of ODS steels. J. Nucl. Mater. 424 (2012) 101-108

    Man J., Vystavěl T., Weidner A., Kuběna I., Petrenec M., Kruml T., Polák J.: Study of cyclic strain localization and fatigue crack initiation using FIB technique. Int. J. Fatigue 39 (2012) 44-53

    Giordana M., Giroux P., Alvarez-Armas I., Sauzay M., Armas A., Kruml T.: Microstructure evolution during cyclic tests on EUROFER 97 at room temperature. TEM observation and modelling. Mater. Sci. Eng. A 550 (2012) 103-11


    2011

    Hutař P., Náhlík L., Ševčík M., Seitl S., Kruml T., Polák J.: Fatigue crack propagation rate in EUROFER 97 estimated using small specimens. Key Eng. Mater. 452-453 (2011) 325-328

    Man J., Obrtlík K., Petrenec M., Beran P., Smaga M., Weidner A., Dluhoš J., Kruml T., Biermann H., Eifler D., Polák J.: Stability of austenitic 316L stainless steel against martensite formation during cyclic straining. Procedia Eng. 10 (2011) 1279-1284

    Kruml T., Polák J.: Fatigue cracks in Eurofer 97 steel: Part I. Nucleation and small crack growth kinetics. J. Nucl. Mater. 412 (2011) 2-6

    Couteau O., Kruml T., Martin J.: About the activation volume for cross-slip in Cu at high stresses. Acta Mater. 59 (2011) 4207-4215

    Polák J., Petrenec M., Man J., Kruml T.: Cyclic plasticity and cyclic creep in austenitic-ferritic duplex steel. Key Eng. Mater. 465 (2011) 431-434

    Kruml T., Kuběna I., Polák J.: Fatigue behaviour and surface relief in ODS steels. Procedia Eng. 10 (2011) 1690-1695

    Kruml T., Hutař P., Náhlík L., Seitl S., Polák J.: Fatigue cracks in Eurofer 97 steel: Part II. Comparison of small and long fatigue crack growth. J. Nucl. Mater. 412 (2011) 7-12

    Saada G., Kruml T.: Deformation mechanisms of nanograined metallic polycrystals. Acta Mater. 59 (2011) 2565-2574

    Polák J., Petrenec M., Kruml T., Chlupová A.: Cyclic plastic response and fatigue life in symmetric and asymmetric cyclic loading. Procedia Eng. 10 (2011) 568-577


    2003

    Polák J., Man J., Obrtlík K., Kruml T.: The shape of extrusions and intrusions produced by cyclic straining. Z. Metallkd. 94 (2003) 1327-1330


    ČísloNázev
    CK02000025 Pokročilé svařované konstrukce pro zvýšení bezpečnosti v letectví
    958192, H2020-NMBP-ST-IND-2020-singlestage, LC-SPIRE-08-2020 Tailoring ODS materials processing routes for additive manufacturing of high temperature devices for aggressive environments (topAM)
    19-00408S Integrita a struktura materiálů v počátečních stádiích interakce s pulzujícím vodním paprskem
    18-03615S Popis šíření únavové trhliny v podmínkách velké plastické zóny na jejím čele
    15-08826S Mechanismy poškození při víceosém cyklickém namáhání
    P107/11/0704 Optimalizace struktury a vlastnosti moderních vysokoteplotních litých materiálů legovaných uhlíkem pomocí komplexního tepelného zpracování
    106/09/1954 Role oxidické disperze při únavovém chování ODS ocelí