TY - JOUR AU - Musza, Alexandra AU - Windisch, Márk AU - Török, Mátyás AU - Molnár, Tamás AU - Kovács, Sándor AU - Sátán-Papp, Szonja AU - Szegedi, Krisztián AU - Ugi, Dávid AU - Nguyen Quang, Chinh AU - Vida, Ádám TI - Tribological Examination of Anodized Al-356 for Automotive Use JF - COATINGS J2 - COATINGS VL - 13 PY - 2023 IS - 9 SN - 2079-6412 DO - 10.3390/coatings13091642 UR - https://m2.mtmt.hu/api/publication/34155816 ID - 34155816 N1 - Bay Zoltán Nonprofit Ltd. for Applied Research, Kondorfa Utca 1, Budapest, H1116, Hungary Department of Materials Physics, Eötvös University, Pázmány Péter Sétány 1/A, Budapest, H1117, Hungary Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Budapest, H1519, Hungary Cited By :1 Export Date: 20 February 2024 Correspondence Address: Vida, Á.; Bay Zoltán Nonprofit Ltd. for Applied Research, Kondorfa Utca 1, Hungary; email: adam.vida@bayzoltan.hu AB - The A356 alloy is commonly used in the foundry industry to produce high-stressed automotive components, such as motor frames and cylinder heads. The aim of this work was to investigate how the mechanical and tribological properties of this alloy can be improved by applying an anodizing process. The properties of the oxide layer formed by anodizing using oxalic acid at low temperatures were characterized by different analytical and tribological methods. The combination of tribological methods with standard measurement techniques—such as hardness measurement, layer thickness measurement, as well as the analysis of the morphological characteristics—was used to track the layer evolution during wear developments. LA - English DB - MTMT ER - TY - JOUR AU - Csörgő, Zsombor László AU - Kovács, Sándor AU - Topa, Martin AU - Rédey, Soma TI - Kender – PLA biokompozit filament 3D nyomtatásának vizsgálata JF - MŰANYAG- ÉS GUMIIPARI ÉVKÖNYV J2 - MŰANYAG- ÉS GUMIIPARI ÉVKÖNYV VL - 21 PY - 2023 SP - 36 EP - 38 PG - 3 SN - 1589-6269 UR - https://m2.mtmt.hu/api/publication/33761895 ID - 33761895 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Csörgő, Zsombor László AU - Kovács, Sándor AU - Topa, Martin AU - Rédey, Soma TI - Kender - PLA kompozit filament 3D nyomtatásának elemzése JF - ANYAGVIZSGÁLÓK LAPJA J2 - ANYAGVIZSGÁLÓK LAPJA PY - 2022 IS - IV SP - 20 EP - 25 PG - 6 SN - 1215-8410 UR - https://m2.mtmt.hu/api/publication/33761834 ID - 33761834 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Topa, Martin AU - Tóka, Bence AU - Béres, Levente AU - Kovács, Sándor TI - Kompozit filamentek 3D nyomtathatósági vizsgálata JF - ANYAGVIZSGÁLÓK LAPJA J2 - ANYAGVIZSGÁLÓK LAPJA PY - 2022 IS - 2 SP - 48 EP - 53 PG - 6 SN - 1215-8410 UR - https://m2.mtmt.hu/api/publication/33205972 ID - 33205972 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Ungár, Péter AU - Kovács, Sándor AU - Havas, Zsuzsanna TI - Végeselemes szimulációkkal támogatott anyagfejlesztési projekt bemutatása JF - MŰANYAG- ÉS GUMIIPARI ÉVKÖNYV J2 - MŰANYAG- ÉS GUMIIPARI ÉVKÖNYV VL - 2022 PY - 2022 SP - 80 EP - 82 PG - 3 SN - 1589-6269 UR - https://m2.mtmt.hu/api/publication/32815145 ID - 32815145 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Ungár, Péter AU - Kovács, Sándor AU - Havas, Zsuzsanna TI - Mezőgazdasági melléktermékek használatával készült kompozitok vizsgálata evőeszközök gyártásához JF - GÉP J2 - GÉP VL - 2021/3-4. PY - 2021 SP - 65 SN - 0016-8572 UR - https://m2.mtmt.hu/api/publication/32518397 ID - 32518397 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Szávai, Szabolcs AU - Kovács, Sándor AU - Bézi, Zoltán AU - Dražan, Kozak TI - Coupled numerical method for rolling contact fatigue analysis JF - TEHNICKI VJESNIK-TECHNICAL GAZETTE J2 - TEH VJESN VL - 28 PY - 2021 IS - 5 SP - 1560 EP - 1567 PG - 10 SN - 1330-3651 DO - 10.17559/TV-20201117124940 UR - https://m2.mtmt.hu/api/publication/31950236 ID - 31950236 LA - English DB - MTMT ER - TY - JOUR AU - Szűcs, Máté AU - Bobor, Kristóf AU - Szabó, Gábor AU - Krállics, György AU - Kovács, Sándor TI - Comparison of Simplified and Finite Element Analysis on Cold Flat rolling JF - MATERIALS SCIENCE AND ENGINEERING: A PUBLICATION OF THE UNIVERSITY OF MISKOLC J2 - MATER SCI ENGINEERING MISKOLC VL - 45 PY - 2020 IS - 1 SP - 271 EP - 283 PG - 13 SN - 2063-6792 UR - https://m2.mtmt.hu/api/publication/31833469 ID - 31833469 LA - English DB - MTMT ER - TY - JOUR AU - Szávai, Szabolcs AU - Kovács, Sándor TI - Temperature Variation at Solid-Fluid Interface of Thin Film Lubricated Contact Problems JF - PROCESSES J2 - PROCESSES VL - 8 PY - 2020 IS - 8 PG - 21 SN - 2227-9717 DO - 10.3390/pr8080922 UR - https://m2.mtmt.hu/api/publication/31607117 ID - 31607117 AB - Many calculating methods have been already developed for solving contact problems of parts such as gears, cams, and followers under fluid film lubrication conditions considering the temperature and pressure dependence. Similarly, the determination of the elasto-hydrodynamic pressure distribution the processes taking place in the lubricant and the contacting bodies, as well as in their environment, have to be dealt with simultaneously for the determination of the temperature field. A system of equation for the modelling of thermo-elastohydrodynamic lubrication between two contacting bodies containing hydrodynamic, thermodynamic, and strength problems is a highly non-linear system which becomes even more so if the temperature and pressure dependence of the material properties are considered. To solve this system, scientists started to use the finite element formulation in the 1960s and it was found to be a promising and reliable method. Earlier, the lubrication analysts used only the h-version finite element method (h-FEM) till 1991, when the first usage of the p-version finite element method (p-FEM) was published in the literature. In order to reduce the problem, in case of point or line contact, the contact bodies can be handled as semi-infinite ones. Following this simplification that had been successfully applied for the gap size determination, a substructure model was defined using analytical solution of the moving heat source. Instead of an iterative way between the solid and fluid problem, in this paper we present an efficient solution when thermal model for lubricant and surfaces were coupled and solved by a direct numerical method in one step. LA - English DB - MTMT ER - TY - CHAP AU - Szabó, Gábor AU - Mikó, Tamás AU - Kovács, Sándor ED - Kékesi, Tamás TI - COMPARISON OF DIFFERENT PLATING TECHNOLOGY OF BONDING PROPERTIES OF MULTILAYER ALUMINIUM SHEETS T2 - MultiScience - XXXIII. microCAD International Multidisciplinary Scientific Conference PB - Miskolci Egyetem CY - Miskolc-Egyetemváros SN - 9789633581773 PY - 2019 PG - 8 DO - 10.26649/musci.2019.086 UR - https://m2.mtmt.hu/api/publication/33228517 ID - 33228517 LA - English DB - MTMT ER -