Institute of Physics of Materials AS CR, v. v. i. > Projects > Physical properties of advanced materials in relation to their microstructure and processing

Physical properties of advanced materials in relation to their microstructure and processing

Investigatordoc. RNDr. Petr Lukáš, CSc., dr. h. c.
Co-investigatorprof. Ing. Ivo Dlouhý, CSc.
Number of ProjectAV0Z20410507
AgencyAkademie věd České republiky
Duration2004-12-31 - 2011-12-30

Anotace
Physical properties of following advanced materials will be studied in relation to microstructure and processing: ultra-fine-grained, microcrystalline, nanocrystalline and amorphous materials; intermetallics; superalloy single crystals; advanced steels; advanced Mg, Fe and Ni alloys; shape memory alloys; composites and nanocomposites; metal laminates; lead-free solders; magnetic semiconductors; half-metallic magnets; magnetic multilayers; transition-metal silicides. The goal is to elucidate mechanisms of the processes and evolution of microstructure running in materials during creep, fatigue and fracture. Diffusion, thermodynamics, structure of phases, electrical and magnetic characteristics will be studied in the relevant range of temperatures both experimentally and theoretically. This will contribute to worldwide pool of knowledge on the advanced materials (mechanismsm of processes, database of experimental data and properties) and consequently to optimisation of their processing.


2014

David B., Pizúrová N., Synek P., Kudrle V., Jašek O., Schneeweiss O.: Epsilon-Fe2O3 nanoparticles synthesized in atmospheric-pressure microwave torch. Mater. Lett. 116 (2014) 370-373

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



2013

Appel F., Herrmann D., Fischer F., Svoboda J., Kozeschnik E.: Role of Vacancies in Work Hardening and Fatigue of TiAl Alloys. Int. J. Plast. 42 (2013) 83-100



2012

Klusák J., Profant T., Kotoul M.: Conditions for crack initiation in an orthotropic bi-material notch. Mech. Adv. Mat. Struct. 19 (2012) 302-307

Chlup Z., Hadraba H., Drdlík D., Maca K., Dlouhý I.: Development of internal stresses in alumina-zirconia laminates. Key Eng. Mater. 507 (2012) 221-226

Životský O., Jirásková Y., Hendrych A., Matějka V., Klimsa L., Buršík J.: Influence of Annealing Temperature and Atmosphere on Surface. IEEE Trans. Magnetics 48 (2012) 1367-1370

Polák J., Man J., Petrenec M., Tobiáš J.: Fatigue behavior of ferritic-pearlitic-bainitic steel in loading with positive mean stress. Int. J. Fatigue 39 (2012) 103-108

Polák J., Petrenec M., Man J., Obrtlík K.: Initiation and short crack growth in austenitic-ferritic duplex steel-effect of positive mean stress. Fatigue Fract. Eng. Mater. Struct. 35 (2012) 257-268

Čermák J., Král L.: Ageing of Mg-Ni-H hydrogen storage alloys. Int. J. Hydrogen Energy 37 (2012) 14257-14264

Čermák M., Zouhar M.: Thin Static Charged Dust Majumdar-Papapetrou Shells with High Symmetry in D ? 4. Int. J. Theoretical Physics 51 (2012) 2455-2469

Čermák J., Král L.: Alloying of Mg/Mg2Ni eutectic by chosen non-hydride forming elements: Relation between segregation of the third element and hydride storage capacity. J. Power Sources 197 (2012) 116-120

Obrtlík K., Pospíšilová S., Juliš M., Podrábský T., Polák J.: Fatigue behavior of coated and uncoated cast Inconel 713LC at 800 °C. Int. J. Fatigue 41 (2012) 101-106

Gröger R., Vítek V.: Constrained Nudged Elastic Band calculation of the Peierls barrier with atomic relaxations. Model. Simul. Mater. Sci. Eng. 20 (2012) 035019

Čermák J., Král L.: Improvement of hydrogen storage characteristics of Mg/Mg2Ni by alloying: Beneficial effect of In. J. Power Sources 214 (2012) 208-215

Chlup Z., Hadraba H., Slabáková L., Drdlík D., Dlouhý I.: Fracture behaviour of alumina and zirconia thin layered laminate. J. Eur. Ceram. Soc. 32 (2012) 2057-2061

Sykora R., Turek I.: Transport Properties of Fe/GaAs/Ag(001) System. J. Nanosci. and Nanotech. 12 (2012) 7554-7557

Svoboda J., Fischer F.: Modelling for hydrogen diffusion in metals with traps revisited. Acta Mater. 60 (2012) 1211-1220

Svoboda J., Fischer F., Abart R.: Modeling the Role of Sources and Sinks for Vacancies on the Kinetics of Diffusive Phase Transformation in Binary Systems with Several Stoichiometric Phases. Philos. Mag. Lett. 92 (2012) 67-76

Svoboda J., Fischer F., McDowell D.: Derivation of the phase field equations from the thermodynamic extremal principle. Acta Mater. 60 (2012) 396-406

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

Životský O., Hendrych A., Klimsa L., Jirásková Y., Buršík J., Gómez J., Janickovic D.: Surface microstructure and magnetic behavior in FeSiB amorphous ribbons from magneto-optical Kerr effect. J. Magn. Magn. Mater. 324 (2012) 569-577



2011

Buršík J.: Elastic parameters of various rafted structures of model Ni-base alloys. Key Eng. Mater. 465 (2011) 85-88

Svoboda J., Fischer F.: Stress Development During Reaction of Metallic Nanospheres with Gas. Acta Mater. 59 (2011) 61-67

Chlup Z., Černý M., Strachota A., Dlouhý I.: Role of pyrolysis conditions on fracture behaviour of fibre reinforced Composites. Key Eng. Mater. 465 (2011) 455-458

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

Friák M., Hickel T., Körmann F., Udyansky A., Dick A., Pezold J., Ma D., Kim O., Counts W., Šob M., Gebhardt T., Music D., Schneider J., Raabe D., Neugebauer J.: Determining the elasticity of materials employing quantum-mechanical approaches: From the electronic ground state to the limits of materials stability. Steel Res. Int. 82 (2011) 88-100

Káňa T., Šob M., Vítek V.: Transformation paths in transition-metal disilicides. Key Eng. Mater. 465 (2011) 61-64

Pospíšilová S., Juliš M., Obrtlík K., Kianicová M., Podrábský T., Dvořáček O.: The Study of Microstructure and Properties of Al Diffusion Coating on Inconel 713LC. Key Eng. Mater. 465 (2011) 282-285

Fischer F., Svoboda J.: Modelling of Reaction of Metallic Nanospheres with Gas. Solid State Phenom. 172-174 (2011) 1028-1037

David B., Pizúrová N., Schneeweiss O., Šantavá E., Jašek O., Kudrle V.: Alpha-Fe nanopowder synthesised in low-pressure microwave plasma and studied by Mossbauer spectroscopy. J. Phys.: Conf. Series 303 (2011) 012090

Svoboda J., Fischer F., Leindl M.: Transient Solute Drag in Migrating Grain Boundaries. Acta Mater. 59 (2011) 6556-6562

Král P., Dvořák J., Kvapilová M., Svoboda M., Beneš V., Ponížil P., Šedivý O., Sklenička V.: Quantitative Characterization of Microstructure in Copper Processed by ECAP. Mater. Sci. Forum 667-669 (2011) 235-240

Polák J., Petrenec M., Man J.: Cyclic plasticity, cyclic creep and fatigue life of duplex stainless steel in cyclic loading with positive mean stress. Kovové materiály 49 (2011) 347-354

David B., Pizúrová N., Schneeweiss O., Kudrle V., Jašek O., Synek P.: Iron-based nanopowders containing alpha-Fe, Fe3C, and gamma-Fe particles synthesised in microwave torch plasma and investigated with Mossbauer spectroscopy. Japan. J. Applied Phys. 50 (2011) 08JF11

Fischer F., Svoboda J., Appel F., Kozeschnik E.: Modelling of Excess Vacancy Annihilation at Different Types of Sinks. Acta Mater. 59 (2011) 3463-3472

Kvapilová M., Sklenička V., Dvořák J., Král P.: An Evaluation of Creep Mechanisms in Ultrafine-Grained Metals. Key Eng. Mater. 465 (2011) 382-385

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

Svoboda J., Fischer F.: Modelling of the influence of the vacancy source and sink activity and the stress state on diffusion in crystalline solids. Acta Mater. 59 (2011) 1212-1219

Kvapilová M., Kuchařová K., Sklenička V., Svoboda M., Hrbáček K.: Creep behaviour and microstructure changes of model cast Ni-Cr-W-C alloys. Procedia Eng. 10 (2011) 839-844

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

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

Fischer F., Svoboda J.: Chemically and Mechanically Driven Creep Due to Generation and Annihilation of Vacancies with Non-ideal Sources and Sinks. Int. J. Plast. 27 (2011) 1384-1390

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

Gröger R., Dudeck K., Nellist P., Vítek V., Hirsch P., Cockayne D.: Effect of Eshelby twist on core structure of screw dislocations in molybdenum: Atomic structure and electron microscope image simulations. Philos. Mag. 91 (2011) 2364

Jirásková Y., Buršík J., Tuček J.: Phase and microstructural analysis of hot rolled FeNi42 sheet, its response in magnetic and mechanical properties. Steel Res. Int. 82 (2011) 898-904

Šmíd M., Petrenec M., Polák J., Obrtlík K., Chlupová A.: Analysis of the Effective and Internal Cyclic Stress Components in the Inconel Superalloy Fatigued at Elevated Temperature. Adv. Mater. Res. 278 (2011) 393-398

Všianská M., Šob M.: Magnetically dead layers at sp-impurity-decorated grain boundaries and surfaces in nickel. Phys. Rev. B 84 (2011) 014418

Obrtlík K., Pospíšilová S., Juliš M., Podrábský T., Polák J.: Low Cycle Fatigue Behavior of Cast Superalloy Inconel 713LC with Al Coating at 800 C. Key Eng. Mater. 452-453 (2011) 265-268

Káňa T., Šob M., Vítek V.: Ab initio study of phase transformations in transition-metal disilicides. Intermetallics 19 (2011) 919-926

Čermák J., David B.: Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2. Int. J. Hydrogen Energy 36 (2011) 13614-13620

Zelený M., Friák M., Šob M.: Ab initio study of energetics and magnetism of Fe, Co, and Ni along the trigonal deformation path. Phys. Rev. B 83 (2011) 184424

Kudrnovský J., Drchal V., Khmelevskyi S., Turek I.: Effects of atomic and magnetic order on electronic transport in Pd-rich Pd-Fe alloys. Phys. Rev. B 84 (2011) 214436

Gröger R., Lookman T.: Influence of dislocations on the spatial variation of microstructure in martensites. Key Eng. Mater. 465 (2011) 77-80

Chlup Z., Černý M., Strachota A., Kozák V.: Properties of modified polysiloxane based ceramic matrix for long fibre reinforced composite materials. Plastics, Rubber and Composites 40 (2011) 380-385

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

Všianská M., Šob M.: The effect of segregated sp-impurities on grain-boundary and surface structure, magnetism and embrittlement in nickel. Prog. Mater. Sci. 56 (2011) 817-840



2010

Klusák J., Knésl Z.: Reliability assessment of a bi-material notch: Strain energy density factor approach. Theor. Appl. Fract. Mech. 53 (2010) 89-93

Ondráček M., Bengone O., Kudrnovský J., Drchal V., Máca F., Turek I.: Magnetic phase stability of monolayers: Fe on a Ta(x)W(1-x) (001) random alloy as a case study. Phys. Rev. B 81 (2010) 064410

Carva K., Turek I.: Out-of-plane spin-transfer torques: First-principles study. J. Magn. Magn. Mater. 322 (2010) 1085-1087

Sato K., Bergqvist L., Kudrnovský J., Dederichs P., Eriksson O., Turek I., Sanyal B., Bouzerar G., Katayama-Yoshida H., Dinh V., Fukushima T., Kizaki H., Zeller R.: First-principles theory of dilute magnetic semiconductors. Rev. Mod. Phys. 82 (2010) 1633-1690

Máca F., Drchal V., Turek I., Bengone O., Redinger J., Kudrnovský J.: Antiferromagnetic ordering in the Fe(001) monolayer mediated by the Ir substrate. J. Surf. Sci. Nanotechnol. 8 (2010) 152-156

Drchal V., Ondráček M., Kudrnovský J., Bengone O., Turek I., Máca F.: Exchange interactions in the bcc Fe/TaW(001) system. J. Surf. Sci. Nanotechnol. 8 (2010) 157-160

Obrtlík K., Juliš M., Man J., Podrábský T., Polák J.: Extrusion and intrusion evolution in cyclically strained cast superalloy Inconel 738LC using confocal laser scanning microscope and AFM. J. Phys.: Conf. Series 240 (2010) 012054

Gröger R., Lookman T., Saxena A.: Incompatibility of strains and its application to mesoscopic studies of plasticity. Phys. Rev. B 82 (2010) 144104

Man J., Weidner A., Kuběna I., Vystavěl T., Skrotzki W., Polák J.: Application of FIB technique to study early fatigue damage in polycrystals. J. Phys.: Conf. Series 240 (2010) 012058

Man J., Valtr M., Weidner A., Petrenec M., Obrtlík K., Polák J.: AFM study of surface relief evolution in 316L steel fatigued at low and high temperatures. Proc. Eng. 2 (2010) 1625-1633



2009

Man J., Klapetek P., Man O., Weidner A., Obrtlík K., Polák J.: Extrusions and intrusions in fatigued metals. Part 2. AFM and EBSD study of the early growth of extrusions and intrusions in 316L steel fatigued at room temperature. Philos. Mag. 89 (2009) 1337-1372

Grujić A., Žák T., Talijan N., Stajić-Trošić J., Ćosović A.: A Comparative Thermomagnetic Study of Melt-spun Nd-Fe-B Alloys with Different Nd Content. Sci. Sintering 41 (2009) 337-345

Polák J., Man J., Vystavěl T., Petrenec M.: The shape of extrusions and intrusions and initiation of stage I fatigue cracks. Mater. Sci. Eng. A 517 (2009) 204-211

Man J., Obrtlík K., Polák J.: Extrusions and intrusions in fatigued metals. Part 1. State of the art and history. Philos. Mag. 89 (2009) 1295-1336



2007

Polák J., Man J., Vystavěl T., Zouhar L.: Fatigue crack initiation in crystalline materials - experimental evidence and models. Key Eng. Mater. 345-346 (2007) 379-382



2006

Petrenec M., Polák J., Obrtlík K., Man J.: Dislocation structures in cyclically strained X10CrAl24 ferritic steel. Acta Mater. 54 (2006) 3429-3443



2005

Polák J.: Cyclic plastic response and fatigue life of duplex and superduplex stainless steel. Kovové materiály 43 (2005) 280-289