TY - JOUR AU - Moussaoui, Ines Sara AU - Duszová, Annamária Naughton AU - Hrubovčáková, Monika AU - Csanádi, Tamás AU - Vojtko, Marek AU - Windisch, Márk AU - Petruš, Ondrej AU - Pinke, Péter AU - Dusza, János TI - Mechanical properties of reactive sintered high-entropy boride/carbide composite JF - Open Ceramics J2 - Open Ceramics VL - 25 PY - 2026 PG - 19 SN - 2666-5395 DO - 10.1016/j.oceram.2025.100879 UR - https://m2.mtmt.hu/api/publication/36435717 ID - 36435717 LA - English DB - MTMT ER - TY - JOUR AU - Hareancz, Ferenc AU - Juhász, Gergely AU - Windisch, Márk AU - Heczel, Anita AU - Vida, Ádám TI - Preparation of High Entropy Alloys Without Pre-Alloying, Using Laser Melt Deposition (LMD) Technique JF - COATINGS J2 - COATINGS VL - 15 PY - 2025 IS - 2 PG - 8 SN - 2079-6412 DO - 10.3390/coatings15020116 UR - https://m2.mtmt.hu/api/publication/35710946 ID - 35710946 AB - This study explores the fabrication of an equimolar CoCrFeNi high-entropy alloy (HEA) using laser metal deposition (LMD) technique on a 316 L austenitic stainless steel substrate, without pre-alloying. Elemental metal powders were mixed in a planetary ball mill and directly deposited to investigate the effect of layer number on alloy composition and substrate intermixing. Experimental results revealed significant dilution in the first four layers, with substrate intermixing affecting composition. The coarse-grained crystal structure observed in the initial layers persisted in subsequent layers, and hardness measurements indicated the cumulative thermal effects of sequential deposition. From an industrial perspective, this approach offers a cost-effective and flexible manufacturing strategy, eliminating the need for pre-alloying. Moreover, gradient compositional layers can be achieved, enabling tailored material properties. This work demonstrates the feasibility of producing multi-layer HEAs directly from elemental powders while addressing the challenges of compositional stability. LA - English DB - MTMT ER - TY - JOUR AU - Czagány, Máté AU - Mészáros, Gábor AU - Koncz-Horváth, Dániel AU - Hlavács, Adrienn AU - Windisch, Márk AU - Hwang, B. AU - Baumli, Péter TI - Effect of Chemical Etching on the Supercapacitive Performance of Electroless Ni-B Coatings JF - MATERIALS J2 - MATERIALS VL - 18 PY - 2025 IS - 15 PG - 19 SN - 1996-1944 DO - 10.3390/ma18153544 UR - https://m2.mtmt.hu/api/publication/36298327 ID - 36298327 N1 - Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, Miskolc-Egyetemvaros, Miskolc, 3515, Hungary HUN-REN Natural Sciences Research Centre, Budapest, 1117, Hungary Department of Materials Physics, Eötvös Loránd University, Budapest, 1117, Hungary Bay Zoltán Nonprofit Ltd. for Applied Research, Budapest, 1116, Hungary School of Integrative Engineering, Chung-Ang University, Seoul, 06974, South Korea Export Date: 25 August 2025; Cited By: 0; Correspondence Address: M. Czagany; Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, Miskolc, Miskolc-Egyetemvaros, 3515, Hungary; email: mate.czagany@uni-miskolc.hu LA - English DB - MTMT ER - TY - JOUR AU - Gubicza, Jenő AU - Kawasaki, M. AU - Dankházi, Zoltán AU - Windisch, Márk AU - El-Tahawy, Moustafa TI - X-ray line profile analysis study on the evolution of the microstructure in additively manufactured 316L steel during severe plastic deformation JF - JOURNAL OF MATERIALS SCIENCE J2 - J MATER SCI VL - 59 PY - 2024 IS - 14 SP - 6008 EP - 6023 PG - 16 SN - 0022-2461 DO - 10.1007/s10853-023-09030-0 UR - https://m2.mtmt.hu/api/publication/34258392 ID - 34258392 N1 - Department of Materials Physics, Eötvös Loránd University, P.O.B. 32, Budapest, 1518, Hungary School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University, Corvallis, 97331, OR, United States Department of Development, Bay Zoltán Nonprofit Ltd. for Applied Research, Budapest, 1116, Hungary Physics Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt Export Date: 06 November 2023; Cited By: 0; Correspondence Address: J. Gubicza; Department of Materials Physics, Eötvös Loránd University, Budapest, P.O.B. 32, 1518, Hungary; email: jeno.gubicza@ttk.elte.hu; CODEN: JMTSA LA - English DB - MTMT ER - TY - JOUR AU - Kocsis, Bence AU - Windisch, Márk AU - Mészáros, István AU - Varga, Lajos Károly TI - 3D printing parameters optimization for Fe-6.5 wt%Si JF - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS J2 - J MAGN MAGN MATER VL - 592 PY - 2024 PG - 5 SN - 0304-8853 DO - 10.1016/j.jmmm.2024.171829 UR - https://m2.mtmt.hu/api/publication/34562195 ID - 34562195 LA - English DB - MTMT ER - TY - JOUR AU - Mukhtarova, Kamilla AU - Kawasaki, M. AU - Dankházi, Zoltán AU - Windisch, Márk AU - Radnóczi, György Zoltán AU - Serafimowicz, W. AU - Gubicza, Jenő TI - Nanostructuring of an additively manufactured CoCrFeNi multi-principal element alloy using severe plastic deformation: Comparison of two materials processed by different laser scan speeds JF - INTERMETALLICS J2 - INTERMETALLICS VL - 170 PY - 2024 PG - 12 SN - 0966-9795 DO - 10.1016/j.intermet.2024.108336 UR - https://m2.mtmt.hu/api/publication/34892226 ID - 34892226 AB - Experiments were conducted to reveal the refinement of the microstructure and the evolution of the hardness of an additively manufactured (AM) CoCrFeNi multi-principal element alloy (MPEA) processed by severe plastic deformation (SPD) using high pressure torsion (HPT) technique. AM was carried out by laser powder bed fusion (L-PBF) technique at two different laser scan speeds. The as-built alloys for both laser scan speeds have a single-phase face-centered cubic (fcc) structure with <110> fiber texture parallel to the building direction. X-ray line profile analysis (XLPA) revealed that the dislocation density was considerably high even in the AM-processed state before HPT (3 × 1014 m 2) which increased by two orders of magnitude during HPT. The saturation of the lattice defects (dislocation density and twin fault probability) as well as the crystallite size occurred at a shear strain of about 10 during HPT. In both AM-processed alloys, <111> fiber texture developed parallel to the normal of the HPT-processed disks. For both laser scan speeds, the initial grain size in the AM-processed samples was refined from 70 to 90 μm to the nanocrystalline regime after 10 turns of HPT. Additionally, nanotwins formed with a probability of about 3 %. The initial hardness of the AM-processed MPEA samples for both laser scan speeds was 2700–2800 MPa, which is superior to that of CoCrFeNi produced by casting (about 1380 MPa). This can be explained by the high dislocation density in the AM-processed specimens. The formation of nano-structure with high lattice defect density during HPT resulted in a very high hardness value of about 5500 MPa in the AM-processed CoCrFeNi MPEA samples for both laser scan speeds. LA - English DB - MTMT ER - TY - JOUR AU - Windisch, Márk AU - Selmeczi, Daniel AU - Vida, Adam AU - Dankházi, Zoltán TI - Investigation of Ripple Formation on Surface of Silicon by Low-Energy Gallium Ion Bombardment JF - NANOMATERIALS J2 - NANOMATERIALS-BASEL VL - 14 PY - 2024 IS - 13 PG - 11 SN - 2079-4991 DO - 10.3390/nano14131124 UR - https://m2.mtmt.hu/api/publication/35143692 ID - 35143692 LA - English DB - MTMT ER - TY - JOUR AU - Kótai, László AU - Windisch, Márk AU - Béres, Kende Attila TI - Transformation of Biomass Power Plant Ash into Composite Fertilizers: A Perspective to Prepare a Rain-Controlled Ammonium Ion–Releasing Composite Fertilizer JF - JOURNAL OF COMPOSITES SCIENCE J2 - J COMPOSITES SCI VL - 8 PY - 2024 IS - 9 PG - 13 SN - 2504-477X DO - 10.3390/jcs8090336 UR - https://m2.mtmt.hu/api/publication/35182649 ID - 35182649 AB - We have developed a convenient route to transform biomass power plant ashes (BPPA) into porous sponge-like fertilizer composites. The absence of water prevents the chemical reaction and carbon dioxide formation when concentrated sulfuric acid is mixed with BPPA and CaCO3. Adding water, however, initiates the protonation reaction of carbonate ion content and starts CO2 evolution. The key element of the method was that the BPPA and, optionally, CaCO3 and/or CaSO4·0.5H2O were mixed with concentrated sulfuric acid to make a paste-like consistency. No gas evolution occurred at this stage; however, with the subsequent and controlled addition of water, CO2 gas evolved and was released through the channels developed in the pastry-like material due to the internal gas pressure, but without foaming. Using a screw-containing tube reactor, the water can be introduced under pressure. Due to the pressure, the pores in the pastry-like material became smaller, and consequently, the mechanical strength of the granulated and solidified mixture became higher than that of the reaction products prepared under atmospheric pressure. The main reaction products were syngenite (K2Ca(SO4)2·H2O) and polyhalite (K2Ca2Mg(SO4)4·2H2O). These compounds are valuable fertilizer components in themselves, but the material’s porous nature helps absorb solutions of microelement fertilizers. Surprisingly, concentrated ammonium nitrate solutions transform the syngenite content of the porous fertilizer into ammonium calcium sulfate ((NH4)2Ca(SO4)2·2H2O, koktaite). Koktaite is slightly soluble in water, thus the amount of ammonium ion released on the dissolution of koktaite depends on the amount of available water. Accordingly, ammonium ion release for plants can be increased with rain or irrigation, and koktaite is undissolved and does not decompose in drought situations. The pores (holes) of this sponge-like fertilizer product can be filled with different solutions containing other fertilizer components (phosphates, zinc, etc.) to adjust the composition of the requested fertilizer compositions for particular soils and plant production. The method allows the preparation of ammonium nitrate composite fertilizers containing metallic microelements, and various solid sponge-like composite materials with adjusted amounts of slowly releasing fertilizer components like syngenite and koktaite. LA - English DB - MTMT ER - TY - JOUR AU - Czagány, Máté AU - Hompoth, Szabolcs AU - Windisch, Márk AU - Baumli, Péter TI - Investigation of the Supercapacitive Behavior of Electroless Ni-B Coatings JF - METALS J2 - METALS-BASEL VL - 13 PY - 2023 IS - 7 PG - 19 SN - 2075-4701 DO - 10.3390/met13071233 UR - https://m2.mtmt.hu/api/publication/34054991 ID - 34054991 N1 - Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, Miskolc, 3515, Hungary Department of Materials Physics, Eötvös Loránd University, Budapest, 1117, Hungary Bay Zoltán Nonprofit Ltd. for Applied Research, Budapest, 1116, Hungary Cited By :1 Export Date: 30 January 2024 Correspondence Address: Baumli, P.; Institute of Physical Metallurgy, Hungary; email: peter.baumli@uni-miskolc.hu AB - Amorphous electroless Ni-B coatings were deposited on steel substrates with different surface morphologies and B contents (6.5–8.64 wt.%) that could be changed by altering the temperature and the composition of the baths. The supercapacitive behavior of the coatings was evaluated by cyclic voltammetry and galvanostatic charge–discharge measurements, and it was found that Ni-B coatings had higher capacitance than pure electroless Ni or the bulk Ni plate. A close relationship was identified between the microstructure, the B content, and the capacitive behavior of the coatings. The presence of the B alloying element had the most significant effect in determining the capacitance, while the surface area and particle size also contributed to its increase. A surface-specific capacity of 31 mF/cm2 was achieved by the coating containing the highest B content and largest AFM surface area. Furthermore, it was revealed that the particle size of the deposits was determined by the combined effect of the bath temperature and the B content under the applied experimental conditions. The obtained results indicate that Ni-B coatings are promising candidates for supercapacitive applications. LA - English DB - MTMT ER - 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 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 -