Contacts
Intranet
SK
International
| Príprava BZT keramiky konvenčným spekaním a spekaním pomocou pulzného elektrického prúdu | |
| Preparation of BZT ceramic with conventional and pulse electric current sintering technique | |
| Program: | Mobility |
| Project leader: | Ing. Puchý Viktor, PhD. |
| Duration: | 1.1.2021 – 31.12.2022 |
| Zlepšenie oteruvzdornosti povrchu nástrojových ocelí pomocou laserového kalenia v kombinácii s hlbokým kryogénnym spracovaním. | |
| The wear resistance improvement of tool steels surface via the laser hardening in combination with deep cryogenic treatment. | |
| Program: | Bilateral – other |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | The main task of the project is to investigate the effect of laser hardening in combination with deep cryogenic treatment on fracture toughness, wear resistance and load – carrying capacity of subsurface region of cold work tool steel and to analyze the modification of microstructural parameters depending on the tool steel type and chemical composition. The experimental materials will be created with three groups of tool steels which are determined for the cold work. The first group will consist of carbon steel with carbon content up to 0.7 wt%, the second groups will be low-alloy steels, and the third group will be the medium alloy steels. These materials will be treated by recommended conventional heat procedures. Subsequently, the materials will be subjected to the treatment by laser beam in order to melting the surface or heating the surface to the selected temperature of austenite as a function of technological parameters of laser hardening and to deep cryogenic treatment in order to remove residual stresses, achieve the transformation of retained austenite and modify the dislocation structure and carbon distribution in the martensitic solid solution. For each material variations, optimal parameters of laser and cryogenic treatments will be defined in order to improve the main mechanical properties of investigated tool steel. |
| Duration: | 6.4.2017 – 31.12.2019 |
| COST – Pokročilý vláknový laser a koherentný zdroj ako nástroje pre spoločnosť, priemyselnú výrobu a vedu o živote – Modifikácia povrchovej mikroštruktúry ocele prostredníctvom vláknového lasera | |
| Advanced fibre laser and coherent source as tools for society manufacturing and life science – The surface microstructure modification of steels via the fiber laser | |
| Program: | COST |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | Among the different types of Lasers, fibre lasers are, both as research and commercially, the youngest, yet the fast growing type of laser due to several factors. This Action will be the first arena where experts in fundamental material science, established laser and component groups, fibre laser manufacturers and end-users will be able to actively interact, share know-how and focus on common goals. We do expect to boost a series of innovations in the field. Among them we aim to cover the 3-6 micron wavelength interval, and beyond, to support mid-infrared applications and to enhance fibre performance to cover more efficiently visible and ultra-violet wavelength generation for biophotonics and healthcare. The Action will also investigate glass material and fibre design to overcome the actual limitation in output power. The improvements will mainly boost healthcare to benefit wide society and EU manufacturing to retain and increase manufacturing workforce within EU. The Action will mentor a new generation of researchers by providing Early Stage Researchers an opportunity to develop both scientific and management skills. At the same time the Action will actively promote gender balance and women researchers to management positions. |
| Duration: | 10.12.2014 – 9.12.2018 |
| Príprava vláknových laserov s jadrom z transparentnej keramiky a ich využitie na laserovú povrchovú modifikáciu materiálov | |
| Preparation of fiber lasers with a core from transparent ceamics and their use for laser surface modificaion of materials | |
| Program: | Inter-academic agreement |
| Project leader: | Ing. Puchý Viktor, PhD. |
| Duration: | 1.1.2016 – 31.12.2017 |
| Mechanické vlastnosti chalkogenidových a boritanových materiálov: nano-indentačný výskum a „ab initio“ výpočty | |
| Mechanical properties of chalcogenide and borate materials: nanoindentation studies and ab initio calculations | |
| Program: | International Visegrad Fund (IVF) |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | The research project is focused on studying the mechanical properties of borate and chalcogenide materials using latest methods of nanoindentation technique and ab initio calculations. These materials are attractive research objects and possess combinations of physical properties which are important for practical applications and fundamental research. Lithium tetraborate (Li2B4O7) is a promising non-linear material for frequency conversion including the generation of the fourth and fifth harmonics of the Nd:YAG laser. The lithium potassium borate (LiKB4O7) single crystal is new promising material for application in non-linear optical and acousto-optic devices. It could be implemented in solid-state laser systems for various practical applications. Moreover, lithium borate crystals find applications in thermoluminescence dosimetry of fast neutrons and in neutron-imaging cryogenic detectors. Borate glasses are of great interest because of their good ionic conductance properties and potential application in solid state batteries. Other applications of lithium tetraborate include surface and bulk acoustic wave devices, pagers, cordless and cellular telephones, and data communication devices. |
| Duration: | 2.9.2014 – 30.6.2015 |
National
| Vývoj a optimalizácia metód spájania a nekonvenčných postupov tepelného spracovania spojených segmentov statorov a rotorov vysoko-pevných FeSi ocelí. | |
| Development and optimization of joining methods and unconventional heat treatment procedures of joining segments of stators and rotors of high-strength FeSi steels. | |
| Program: | VEGA |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | The project is focused on experimental research of the optimization of destructive and innovative non-destructive procedures for joining segments of different qualities of high-strength electrical steels in the cores of electrical machines. The jointing procedures proposed by us in combination with additional mechanical processing of sheets and subsequent unconventional thermal treatment of rotor and stator bundles aim to optimize the microstructure and texture not only of the lamellae themselves but also in the area of their joints to achieve the formation of a coarse-grained microstructure with preferred cubic {001}<uvw >and Goss\’s {011}<001> texture. The magnetic properties of the join press clippings in the form of silicon steel toroids will be compared with the magnetic properties of the reference samples. A sequence of structure-forming processes will be proposed to achieve the set optimal conditions for joining the lamellae into bundles with the aim of minimizing magnetic losses. |
| Duration: | 1.1.2024 – 31.12.2026 |
| Experimentálny vývoj nových kovo-keramických nano-kompozitov pre trecie aplikácie s využitím odpadov z obrábamia kovov | |
| Experimental development of new metal – ceramic nano – composites for friction applications using metal wastes from machining operations. | |
| Program: | VEGA |
| Project leader: | Ing. Podobová Mária, PhD. |
| Annotation: | The aim of the project is to investigate the properties of nano-composites with a metal matrix based on Fe-Cu with the addition of SiC, ZrO2, Al2O3 and graphene and with the addition of metal wastes from conventional machining operations such as Al, CuSn, stainless steel, Ti, MgAl etc. The composites will be prepared by the method of dry mixing in a 3D turbula, attritor, the method of high-energy ball-mill in ethanol, the method of rapid sintering using a pulsed electric current in a vacuum under the simultaneous action of uniaxial pressure (SPS "spark plasma sintering"). The results will be mapping the properties of prepared nano-composites, such as hardness, strength, abrasion resistance, thermal and structural stability (DSC / TG), coefficient of friction and wear and selection of nano-composites with the best possible combination of individual components with respect to the resulting properties (stability, carrying-off heat weight reduction, coefficient of friction, wear rate). |
| Duration: | 1.1.2023 – 31.12.2025 |
| 00099 – Štipendiá pre excelentných výskumníkov ohrozených vojnovým konfkliktom na Ukrajine | |
| – | |
| Program: | Plán obnovy EÚ |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Duration: | 1.1.2023 – 31.12.2025 |
| Výskum odolnosti a prevencie moderných konštrukčných materiálov voči vodíkovému krehnutiu | |
| Research of the resistance and prevention of modern structural materials against hydrogen embrittlement | |
| Program: | VEGA |
| Project leader: | Ing. Falat Ladislav, PhD. |
| Annotation: | The aim of the project is to investigate the susceptibility to hydrogen embrittlement (HE) of structural metallicmaterials based on Fe (i.e. modern grades of carbon and alloy steels) as well as selected alloys or compositesbased on non-ferrous metals (e.g. Al, Cu, Mg, etc.) by the method of electrochemical hydrogen charging andmechanical testing in laboratory conditions. The microstructural conditionality of hydrogen embrittlement will be investigated on defined material states with characteristic microstructural parameters (grain size, phase composition, etc.). The possibilities of HE prevention will be investigated using available methods of surface modification (layers and coatings, surface alloying, formation of gradient structures, etc.) of basic materials inorder to apply a barrier effect against hydrogen permeability. |
| Duration: | 1.1.2022 – 31.12.2025 |
| DINOMESEM – Vývoj inovatívnych spôsobov spracovania a spájania elektrotechnických ocelí pre vysokoúčinné aplikácie v e-mobilite | |
| Development of innovative methods of processing and joining electrical steels for high-efficiency applications in e-mobility | |
| Program: | SRDA |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | The global trend to reduce emissions has forced car producers to think about other types of propulsion thaninternal combustion engines. A significant direction in which the world is currently moving in this area is thereplacement of internal combustion engines with electric car drives. This fact has led and it is still leading to a greatexpansion in the production of car batteries, which would allow the longest possible range of electric cars. Besidesthe capacity of the batteries, the efficient use of stored energy in electric vehicle drives has a significant effect onthe range of cars as well. This project aims to reduce losses and increase the efficiency of electric drives.Increased efficiency and reduced losses can be achieved by reducing the losses in the materials of the rotors andstators of rotating electrical machines, but also by reducing the losses that occur when changing the properties of the source material during cutting and subsequent joining into rotor and stator bundles. Experimental research will focus on optimizing the microstructure and texture of various grades of electrical sheets in order to minimize electromagnetic losses and optimize the conditions for the production of rotor and stator bundles by cutting and subsequent joining. The optimization of the conditions of joining electrical sheets of various chemical and microstructural concepts will be the expected output of the project. The magnetic properties of the joined electrical sheet cut-outs will be compared with the magnetic properties of the lamellas produced by electrospark cutting. |
| Duration: | 1.7.2022 – 31.12.2025 |
| 00061 – Štipendiá pre excelentných výskumníkov ohrozených vojnovým konfkliktom na Ukrajine | |
| – | |
| Program: | Plán obnovy EÚ |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Duration: | 1.10.2022 – 30.9.2025 |
| Ino-Clad – Inovatívne prístupy pri obnove funkčných povrchov laserovým naváraním | |
| Innovative approaches to the restoration of functional surfaces by laser weld overlaying | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | The project is focused on the restoration of functional surfaces by laser weld overlying. Innovative approaches willbe applied in the restoration of functional parts of molds for high-pressure die casting of aluminum alloys. Laserweld overlaying technology will be used for the formation of restoration layers in order to significantly reduce thenegative impact of the introduced heat on the quality of sub-weld layers. Newly designed additional materialsbased on Co, Ni, Fe with the presence of dispersed abrasion-resistant precipitates will be used. Additionalmaterials for laser welding will be used in the form of wires made of Uddeholm Dievar and Maraging. For bettervariability of the chemical composition, powder additives based on Fe with the addition of B, Ti, Nb, Mo, V and Wwill also be used to create weld overlays. The optimal method of heat treatment of weld overlays will be proposed.Research will further focus on microtexturing the surface of molded parts by low-energy laser radiation usinginnovative engraving surface treatment methods (LBT and EBT) in order to ensure a smooth distribution of theseparating agent on the mold surface. Experimental work will be focused on modifying the microgeometry of thesurface of new and renovated shaped parts of molds so that in the phase of "run-in of the mold" a compact layer ofthe separating agent is created to increase the technological life of molds. PVD and PE-CVD technologies will beused for this purpose. |
| Duration: | 1.7.2021 – 30.6.2024 |
| Vývoj nekonvečného termo-mechanického postupu finálneho spracovania izotropnych elektrotechnických ocelí | |
| Unconventional thermo-mechanical technology development of final processing of isotropic electrical steels. | |
| Program: | VEGA |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Duration: | 1.1.2021 – 31.12.2023 |
| HYBS – Vývoj technológie prípravy povrchových nano-štruktúr nástrojových ocelí novej generácie za účelom zvyšovania kvality lisovania hybridných karosérií automobilov s nízkymi CO2 – emisiami z vysokopevných TRIP – ocelí | |
| Technology development of surface nanostructuring of new generation tool steel for increasing the quality of low CO2 – emission cars hybrid bodies stampung using high – strength TRIP – assisted sheet metal | |
| Program: | SRDA |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Duration: | 1.2.2022 – 31.12.2023 |
| AdArmy – Prídavná flexibilná balistická nanokompozitná ochrana horných a doných končatín | |
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| Program: | Other projects |
| Project leader: | Ing. Puchý Viktor, PhD. |
| Duration: | 1.1.2023 – 30.11.2023 |
| Histes – Vývoj vysoko-legovaných izotrópnych elektro ocelí pre trakčné motory elektromobilov | |
| Development of high-alloy isotropic electrical steels for traction engines of electric vehicles | |
| Program: | SRDA |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | In this project, for the production of high strength electrical steel type “finish”, we aim to propose an original concept of chemical composition and microstructural design with the desirable crystallographic texture which would beprovided a combination of excellent electro-magnetic and high strength properties. The strength properties will be provided by high alloying of steels which are based on substituents elements with Si content from 3 to 3,5 wt.%, Alcontent from 0,5 to 1,5 wt.%, Cu content up to 0,5 wt.%, and P content up 0,10 wt.%. The low value of watt losses and high level of magnetic induction will be achieved by means of coarse-grained columnar or coarse-grained equiaxial microstructure with average grain size in the range from 150 to 300μm and with increased intensity of cube and Goss texture components at the expense of deformation texture. The evolution of the final microstructure will be based on the use of the strain-induced growth of ferrite grains through the thickness of the sheet from itssurface to the central part. At the same time, we want to eliminate the liability to the brittle failure of materials during the cold rolling. It will be realised by optimization of previous thermal deformation exposures in the hot rollingprocess as well as optimization of deformation process of cold rolling with "tailor-made" parameters of rolled steel.The development steel will be used in traction engines of electric vehicles and in high-speed electric motors withhigh requirement for the power. |
| Duration: | 1.7.2019 – 30.6.2022 |
| ZELASHYK – Zvyšovanie efektívnosti lisovania a spájania dielov hybridných karosérií | |
| Increasing the efficiency of forming and joining parts of hybrid car bodies | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Nowadays, there is a characteristic continual pressure on the emission reduction produced by the cars. Onepossible way to reduce the amount of emissions produced by the automobiles is the reduction of the bodyweight. The weight of the automobile could be reduced through the hybrid car body, which consists of differentmaterials based on the light alloys, composite materials and high-strength steel sheets. Solutions related to suchhybrid car body designs must be addressed in to the forming, but also to the joining of the individual parts ofsuch multi-material conception. The aim of the project is the optimization of the forming conditions of aluminiumalloy sheets and high-strength steel sheets to increase the process efficiency. The appropriate joining techniquewill be proposed based on the results of the analyses of the stress-strain states of the formed parts. Acomparison of strength and load-bearing capacity of the joints after different intensity of deformation and stressstrainstates will be the assumed result. Effective and innovative methods of joining of aluminium and highstrengthsteel sheets after different intensity of deformation and stress-strain states will be assessed. The resultsobtained from the optimization of the joining process of the materials made of ferrous and non-ferrous metals willallow the strength of joints to be increased. |
| Duration: | 1.7.2018 – 31.5.2022 |
| Textúrne dvojito orientované elektrotechnické ocele s vysokou, izotrópnou indukciou. | |
| Double-oriented electrical steels with high and isotropic magnetic induction. | |
| Program: | VEGA |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | The project is a goal-oriented on the development of isotropic electrical steels with high induction. The idea of theproject is based on the increase of cubic texture intensity and the control of the Goss texture component in thesheet plane. The mentioned crystallographic texture will be achieved by columnar grains growth via themechanisms of diffusion-controlled and deformation-induced grain boundary motion. The intensity of the cubictexture component will be increased from sub-surface region to the central part. At the same time the highintensity of the deformation component (111) [0vw] will be eliminated at the middle part of steel. Such amicrostructural and textural state will be the basis for the isotropy of magnetic properties at a relatively low lossesand a high isotropy of magnetic induction. The output of the project will be not only the acquired knowledge infield of basic research, also will be proposed a technological process for the preparation of such a microstructure. |
| Duration: | 1.1.2019 – 31.12.2021 |
| SEMOD-75 – Nanokompozitný materiál pre balistickú ochranu | |
| Nanocomposite material for balistic protection | |
| Program: | Other projects |
| Project leader: | Ing. Puchý Viktor, PhD. |
| Duration: | 1.5.2019 – 31.8.2021 |
| Dizajn mikroštruktúry a subštruktúry elektroocelí pre náročné aplikácie v pohonoch elektromobilov | |
| The microstructural and substructural design of electrical steels for demanding applications in the electrical cars drives. | |
| Program: | VEGA |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | The project is focused on the microstructural and substructural design of high-strength electrical steels intended for rotors and stators of traction motors for electricalcars and cars with hybrid drive. In frame of present project the research will be focused on the design and preparation of high-strength dynamo steels with good strength as well as the magnetic properties. The proposed steel will be designed so that its microstructure and texture parameters show the low watt loss under load in high magnetic fields and mechanical strength provide by ultra-fine precipitates (up to 50nm) or clusters of selected elements based on FeTiP particles responds to the requirements for the extreme mechanical and fatigue loads of the rotor at sudden braking or pulling acceleration. To achieve the selected composite system a sequence of structure creation will be designed and implemented. |
| Duration: | 1.1.2018 – 31.12.2020 |
| FOROPTIMAT – Výskum vplyvu inovácií postupov výroby na životnosť nástrojov a komponentov lesných mechanizmov | |
| Research on the impact of process innovation on lifespan of forestry machinery tools and components | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Project is focused on research on the impact of process innovation on lifespan of forest machines tools and components. During the project it will be elaborated a comprehensive analysis of the current status in using of working tools and components from material and technology points of view. In order to find stress-strain state of tools and components it will be performed FEM analysis. Further, it will be performed state material analysis of specimens to examine their physical and mechanical properties, microstructure characteristic and resistance to abrasive wear. Based on the results of aforementioned analyzes it will be proposed and applied innovative methods of production technology and surface treatments procedures for exposed functional areas in order to increase their function life. In order to comparison the same experimental tests on specimens will be repeated. Based on the results of comparison, it will be carried out selection of optimal innovative procedures. Selected procedures will be applied and tested in the operating conditions of forestry. It is expected that implementation of the results of applied research will increase lifespan of forest machines tools and components thereby reducing their maintenance costs and purchase costs. |
| Duration: | 1.7.2017 – 31.12.2020 |
| Inotech – Využitie inovatívnych technológií obnovy funkčných plôch foriem na výrobu odliatkov pre automobilový priemysel | |
| The utilization of innovative technology for repair functional surfaces of mold casting dies for castings in automotive industry | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | The project aims at increasing the service life of shaped parts of molds and cores for high pressure die casting (HPDC) of aluminum alloys for the automotive industry. Increasing the service life of casting moulds and dies is achieved using innovative technologies of restoration their functional shape surfaces. For this renovation purpose will be used hard surfacing of functional surfaces of tools in combination with PVD and PE-CVD coatings made of new advanced nanomaterials based on TiAlN, CrAlN and TiB. There will be experimentally verified the effectiveness of local heat exposure of renovated as well as original surface of shaped casting mould to laser as a method of surface pretreatment before deposition thin coatings using PVD or PE CVD technology. The application potential of the project lies in reducing the cost of maintenance moulds and dies, in saving of material resources and also in increasing the productivity and reliability of the process of aluminum castings production. |
| Duration: | 1.7.2017 – 31.12.2020 |
| DevProSteel – Vývoj nekonvenčnej technológie finalného spracovania izotrópnych elektrotechnických ocelí | |
| Unconventional technology development of final processing of isotropic electrical steels | |
| Program: | SRDA |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | The project is focused on the technological process application of the final deformation-thermal treatment of isotropic electrical steels. The proposed process provides the better micro structural and textural parameters of materials. In addition to improvement of the electromagnetic properties, this procedure allows to reduce thecontent of alloying elements Si and Al for the individual quality grades with a positive impact on the shearing properties and thermal conductivity of sheets metal. Our proposed treatment technology will be based on the useof strain induced ferrite grain growth under the influence of gradient of internal deformation stresses and thermal exposure at the final heat treatment of strips and electromotor segments. At the same time the domain structure will be modified on the steel surface by using laser radiation. |
| Duration: | 1.7.2016 – 30.6.2019 |
| Modifikácia povrchovej mikroštruktúry nástrojových ocelí laserom | |
| Modification of surface microstructure of tool steels by laser. | |
| Program: | VEGA |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | The main task of the project is focused on the analysis of the modification of tool steel microstructure by means ofapplying of conventional heat treatment in combination with the subsequent laser heat treatment so that the mainproperties will be improved.The experimental materials will be created with three groups of tool steels which are determined for the coldwork. The first group will be consist of carbon steel with carbon containing up to 0.7 wt%, the second groups willbe low-alloy steels, and the third group will be the medium alloy steels. These materials will be treatment byrecommended conventional heat procedures. Subsequently, the materials will be subjected to the treatment bylaser beam in order to melting the surface or heating the surface to the selected temperature of austenite as afunction of technological parameters of laser treatment. For each material variations will be defined the optimalparameters of laser treatment in order to increase wear resistance of steel. |
| Duration: | 1.1.2016 – 31.12.2018 |
| ZKVAVESE – Zvýšenie kvality výstrižkov a efektívnosti strihania elektroplechov | |
| Increasing the quality of cut-outs and effectiveness of cutting electric sheets | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Electric tractions (motors) are inseparable part of many devices from the motor for home appliances through theelectric motors for machines and equipment to electric motors for electric vehicles. Most of these motors consistof the rotor and stator, which are based on the cut-outs from electrical sheets. The cut-outs are joined into therotor and stator bundles. When making the bundles, the important factor is the quality of cutting surface, whichalso influences the additional operations. It also has a significant effect on the quality parameters of electricmotors (size of losses by engine heating). The proposed project has the ambition to solve the optimization of thequality of cutting existing and new developed electrical sheets in context of the expected development ofproduction of electric vehicles. The base of the experimental part is the verification of new tool materials(including uncoated ones) for the production of the active parts of cutting tools for the purpose of increasing thequality of cutting surface and tool life and thereby increasing the efficiency of production of cut-outs fromelectrical sheets. |
| Duration: | 1.7.2015 – 30.6.2018 |
| Modifikácia doménovej štruktúry kremíkových elektrotechnických ocelí pomocou laserového žiarenia. | |
| The modification of domain structure of silicon electrotechnical steels by laser beam. | |
| Program: | VEGA |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | The project is focused on the final magnetic losses reduction of the silicon electrotechnical steels by modification of domain structures by using laser beam. The researches will be oriented on the domain modification on the surface of silicon steels after final thermo – mechanical treatments. Moreover the microstructural and textural parameters of these steels will be not violated. The laser scribing will be application on the material surface in order to induce thermal stresses, which influence on the modification of the internal structure of magnetic domains. The final domain structures will be optimized in relation to the minimization of watt losses of the experimental material and to the optimization of thermal stresses application on the surface. |
| Duration: | 1.1.2015 – 31.12.2017 |
| Vysokopevné elektrotechnické ocele pre elektromobily a hybridné pohony . | |
| High-strength electro-technical steels for electric vehicles and hybrid motors. | |
| Program: | VEGA |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | The project is focused on the microstructural design of high-strength electrical steels for hybrid motors and electric vehicles. Within the proposed project the original concept of high-strength electrical steel based on composite gradient microstructure substructure and texture through the sheet thickness arrangement, will be designed. The central part is characterized by coarse-grained microstructure with high intensity cubic texture component reinforced by coherent Cu precipitates and solid solution, characterized by excellent electromagnetic parameters. Subsurface area will consist of fine-grained microstructure reinforced by incoherent AlN precipitates and solid solution of Si, Al, Cu in the ferrite. This area is characterized by high strength characteristics and good resistance to fatigue rupture.To achieve the selected composite system a sequence of structure creation will be designed and implemented. |
| Duration: | 1.1.2013 – 31.12.2015 |
| HECOSTE – Vysokopevné elektrotechnické kompozitné ocele | |
| High-strength electro-technical composite steels | |
| Program: | SRDA |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | The project focuses on the microstructural design of high-strength steels for electrical motors for hybrid and electric vehicles. The proposed project will be designed the original concept of high-strength electrical steel based composite arrangement gradient microstructure, substructure and texture of the sheet thickness .. The central part is characterized by coarse-grained microstructure with high intensity cubic texture component reinforced coherent Cu precipitates and solid solution, characterized by excellent electromagnetic parameters. Subsurface area will consist of fine-grained microstructure reinforced incoherent precipitates and AlN solid solution of Si, Al, Cu in the ferrite. This area is characterized by high strength characteristics and good resistance to fatigue poušeniu.To achieve the selected composite system will be designed and implemented a sequence of processes štrukturotvorných / diffusion, recrystallization, deformation-induced grain boundary motion, precipitation, the interaction of grain boundaries with precipitates, selective growth of grains /.They analyzed the electromagnetic, strength and fatigue characteristics. Will be developed a comprehensive model of the complex microstructure of electromagnetic nature, strength and fatigue characteristics of high strength electrical steel composite construction. |
| Duration: | 1.7.2012 – 31.12.2015 |
| VUKONZE – Centrum výskumu účinnosti integrácie kombinovaných systeémov obnoviteľných zdrojov energií | |
| Research Centrum for Combinated and Renewable Resources of Energy | |
| Program: | EU Structural Funds Research & Development |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | In frame of the activity named as “Investigation of isotropic electrotechnical steels type semi-finish possessing improved electromagnetic properties” will be conducted research at IMR SAS. The activity will be performed as a part of the project. The study will be directed on investigation of temperature and deformation induced structure development processes such as polygonisation, recrystallization, grain boundary motion and development of crystallographic texture. The experimental material will be electrotechnical steels with Si content up to 2,5 wt.%. Deformation energy will be used for selective growth of grains possessing cubic texture. The deformation energy will have a different intensity level that is dependent on elasticity modulus of differently oriented grains. Mathematical models of behavior of strain stress dependences for particular crystallographic orientations during cold rolling process will be developed. These models will be used for optimization of cold rolling process. The optimization will be done in order to obtain maximal gradient of deformation intensities between grains having cubic and deformation texture components. The gradient will provide a driving force that will be used during dynamical heat treatment. The aims will be a development of columnar microstructure with increased intensity of cubic texture components. The experimentally treated materials will be subjected to electromagnetic properties measurements. On the base the proposed research a new thermo-mechanical treatment process fro semi-finish electrical steels will be proposed. This proposed process will be economically more reasonable in comparison to the now existing ones and will provide better magnetic properties for steels with content of Si up to 2.5% wt.. The process also allows decreasing of the Si content in the quality grades (M 340 to M 560 – 50E) that in turn provides higher heat conductivity. |
| Duration: | 1.6.2010 – 31.12.2013 |
| NMTE – Nové materiály a technológie pre energetiku | |
| New Materials and Technology for energetics | |
| Program: | EU Structural Funds Research & Development |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | Aims o the project are: 1. Technology of nanostructured bulk superconductors for energy storage 2. Biological battery based on renewable biological products 3. New trafo-steel modified by nanoparticles 4. Cooling and insulating medium based on magnetic fluid for high power transformers.Activities, carried out at IMR SAS in frame of the project, are targeted on scientific knowledge transfer into proposal of a financially favorable technological process of grain oriented electrical steels production. The activities are manly related to area of microstructure and crystallographic texture evolution of the steels. The originality of the approach is based on an assumption of deformation induced grain boundary motion of ferrite grains. This phenomenon will be combined with pinning effect of nano-particles of micro alloyed elements and will be used for selective growth of (110) [001] oriented grains. Effective distribution parameters of the inhibition system and lower dissolution temperatures of these particles will allow to control of abnormal grain growth of the Goss grains at lover temperature and significantly shorter time temperature expositions. |
| Duration: | 1.9.2010 – 31.8.2013 |
| Mikroštruktúrny dizajn progresívnych izotrópnych elektrotechnických ocelí. | |
| Microstructure design of progressive isotropic electrotechnical steels | |
| Program: | VEGA |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | The project is focused on controlled evolution of microstructure and crystallographic texture in the isotropic electrotechnical steels possessing high permeability for use in electric motors with higher efficiency. Mechanisms of deformation induced and thermo activated grain boundary motion will be used during controlled development of microstructure of selective abnormal grain growth process. This will be done in order to achieve predominant intensity of (100) [0vw] and so called Goss (110) [001] texture components with simultaneous decrease of deformation texture (111) [0vw]. The mentioned crystallographic orientation will provide improvement of watt losses parameters as well as magnetic induction with simultaneous decreasing of alloying elements that will have positive impact on decreasing of heat conduction coefficient of the final material. |
| Duration: | 1.1.2010 – 31.12.2012 |
| Technológia prípravy elektrotechnických ocelí s vysokou permeabilitou určených pre elektromotory s vyššou účinnosťou | |
| Technology of preparation of electrotechnical steels possessing high permeability for high affectivity electromotors. | |
| Program: | EU Structural Funds Research & Development |
| Project leader: | RNDr. Kováč František, CSc. |
| Annotation: | The project is focused on oriented research and development of progressive electrotechnical steel possessing goal-directed microstructures, textures and substructures parameters that provide excellent application properties. The application is aimed on high efficient electrical gears used in electrotechnical, energetic and automobile industry areas. This bears a great importance not only on Slovak Republic but in whole Europe Union scale. Within connection with knowledge transfer to economic area, an increase of produced product quality is expected. The quality improvement could be achieved at recent or even lower production costs that will lead to increasing of product competitiveness. |
| Duration: | 1.1.2010 – 30.6.2012 |
| DIMONI – Štúdium modifikácie makroštruktúry kovových a polovodičových systémov pomocou legovania prímesnými atómami | |
| Studies of diffusion of modifying atoms and microstructure of metal-based and semiconductor-based alloys | |
| Program: | SRDA |
| Project leader: | Mgr. Petryshynets Ivan, PhD. |
| Annotation: | The project is focused on characterization of nano-scale precipitates and grain boundary segregdation of carbon in non-oriented electrical steel (NO ES) and development of an empirical model for assessment of relation between their morphology and core loss. Two groups of main objectives will be investigated by joint efforts of the Slovak and Slovenian groups. First, since magnetic properties of NO ES is very dependent on second phase particles (precipitates). Precipitates can have negative effects because they limit the grain growth during the final annealing and the direct negative effect is pinning of domain wall movements. The aim of the project therefore is to investigate the (nano)structures of NO ES in order to characterize the non-metallic inclusions and precipitate populations in ferrite matrix and determine the size, morphology, quantity and distribution. Purpose of the project is to produce a model for assessment of relation between size and morphology of the inclusions and (nano)precipitates and core loss.The second group of objectives consists in the studies of segregations of carbon on grain boundaries. A quite important role plays a carbon segragation at interfaces in the NO ES. This solute elemnt has an enormous effect on grain boundary migration and even very small ammount of concentration may significantly affects the recrystallization or grain growth phenomenta taking place in the NO steel during its heat treatment. However the knowladge of whow and whther indeed the carbon influence the grain boundary migration, even at small concentrations, in steel is still radumentary. This draws a need to sudy more deeply the presnce of carbon, even at small concentrations, in NO ES.Hence, the prospective results could lead to significant improvement in microstructure and texture control which have a direct affect on electromagnetic properties of NO ES. |
| Duration: | 1.3.2010 – 31.12.2011 |
| AddArmy – Prídavná flexibilná balistická nanokompozitná ochrana horných a dolných končatín | |
| – | |
| Program: | Other projects |
| Project leader: | Ing. Puchý Viktor, PhD. |
| Duration: | 1.3.2023 – 0.0.0000 |