@article{MTMT:34538302, title = {Non-destructive texture characterization by a robot-arm-driven X-ray diffractometer}, url = {https://m2.mtmt.hu/api/publication/34538302}, author = {Sepsi, Máté and Benke, Márton and Mertinger, Valéria}, doi = {10.1107/S1600576723010993}, journal-iso = {J APPL CRYSTALLOGR}, journal = {JOURNAL OF APPLIED CRYSTALLOGRAPHY}, volume = {57}, unique-id = {34538302}, issn = {0021-8898}, abstract = {The most common methods for texture characterization require cutting a coupon to be inserted into an X-ray texture goniometer or an electron microscope and are, therefore, destructive. However, there are many cases where texture characterization needs to be performed in a non-destructive way, where the measurement can be made without damaging the object. Typical examples are archaeological artefacts or very expensive materials. Here we demonstrate the application of an X-ray diffractometer mounted on a robotic arm designed for residual stress scanning for texture characterization, enabling the determination of the orientation distribution function for different locations on samples with complex geometries. The texture characterization method was benchmarked on a cold-rolled aluminium sheet.}, year = {2024}, eissn = {1600-5767}, pages = {94-103}, orcid-numbers = {Mertinger, Valéria/0000-0002-5951-0801} } @{MTMT:34538323, title = {Pólusábrák és azok metszeteinek mintakivágást nem igénylő mérési módszere központ nélküli röntgendiffraktométerrel omega és módosított pszí módban}, url = {https://m2.mtmt.hu/api/publication/34538323}, author = {Benke, Márton and Sepsi, Máté and Mertinger, Valéria and Kárpáti, Viktor}, unique-id = {34538323}, year = {2023}, orcid-numbers = {Mertinger, Valéria/0000-0002-5951-0801} } @article{MTMT:34133716, title = {Improving surface integrity by optimizing slide diamond burnishing parameters after hard turning of 42CrMo4 steel}, url = {https://m2.mtmt.hu/api/publication/34133716}, author = {Zaghal, Jawad and Molnár, Viktor and Benke, Márton}, doi = {10.1007/s00170-023-12008-6}, journal-iso = {INT J ADV MANUFACT TECHNOL}, journal = {INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY}, volume = {128}, unique-id = {34133716}, issn = {0268-3768}, abstract = {Despite turning could be replaced by grinding as a finishing machining process, it is considered not satisfactory for elongating the fatigue life of the component because of the produced tensile residual stresses and irregularities formed at the surface. Therefore, a complimentary operation should be applied after hard turning. Slide diamond burnishing process is a mechanical finishing operation used after hard turning to further decrease the surface roughness, introducing compressive residual stresses, increasing the microhardness, and refining the microstructure of the surface and subsurface layer of the workpiece. The main result is increasing the fatigue life of the rotating components subjected to cyclic loading. In this work, the simultaneous effect of changing the burnishing speed, feed, and force of slide diamond burnishing on surface roughness, residual stresses, and microhardness of 42CrMo4 hard-turned steel was studied. It was found that the effect of one parameter was highly affected by the others. As a result, the optimal burnishing parameters were specified, with which better surface quality was obtained than after grinding.}, year = {2023}, eissn = {1433-3015}, pages = {2087-2103}, orcid-numbers = {Zaghal, Jawad/0000-0003-3374-7947; Benke, Márton/0000-0002-1354-8660} } @article{MTMT:33906504, title = {Determination of reliable area sizes for 3D roughness measurement}, url = {https://m2.mtmt.hu/api/publication/33906504}, author = {Zaghal, Jawad and Benke, Márton}, doi = {10.20998/2078-7405.2023.98.01}, journal-iso = {CUTTING TOOL TECHN SYST}, journal = {REZANIE I INSTRUMENT V TEHNOLOGICESKIKH SISTEMAKH / CUTTING AND TOOL IN TECHNOLOGICAL SYSTEMS}, volume = {98}, unique-id = {33906504}, issn = {2078-7405}, abstract = {Surface roughness characterization plays an important role in the qualification of machined surfaces. As a result of the development of high resolution 3D scanning techniques, researchers and technologists have more possibilities to analyze surface topography in a more detailed way. The purpose of this study is determining the minimal measurement area size of surfaces hard machined by single-point and abrasive tools. Some important height parameters were analyzed: Sa, Sq, Sp, Sv, Ssk and Sku. It was found that the minimum area sizes vary for the different roughness parameters, however, in several cases minimization is possible, depending on the purpose of the surface analytics.}, year = {2023}, pages = {3-12}, orcid-numbers = {Zaghal, Jawad/0000-0003-3374-7947} } @inproceedings{MTMT:33709215, title = {Boridálás alkalmazása növelt élettartamú szelektív forrasztószerszámok fejlesztéséhez}, url = {https://m2.mtmt.hu/api/publication/33709215}, author = {Sályi, Zsolt and Benke, Márton}, booktitle = {XXX. Hőkezelő és Anyagtudomány a Gépgyártásban Országos Konferencia és Szakkiállítás}, unique-id = {33709215}, year = {2023}, pages = {188-200} } @article{MTMT:33541220, title = {Characterization of residual stress state after turning of bearing rings}, url = {https://m2.mtmt.hu/api/publication/33541220}, author = {Zaghal, Jawad and Mertinger, Valéria and Filep, Ádám and Benke, Márton}, journal-iso = {Doktorandusz Almanach}, journal = {Doktorandusz Almanach}, volume = {1}, unique-id = {33541220}, issn = {2939-7294}, year = {2022}, pages = {313-318}, orcid-numbers = {Zaghal, Jawad/0000-0003-3374-7947; Mertinger, Valéria/0000-0002-5951-0801} } @article{MTMT:32602562, title = {Boride Coatings on Steel Protecting it Against Corrosion by a Liquid Lead-Free Solder Alloy}, url = {https://m2.mtmt.hu/api/publication/32602562}, author = {Sályi, Zsolt and Kaptay, György and Koncz-Horváth, Dániel and Somlyai-Sipos, László and Kovács, Péter Zoltán and Lukacs, Attila and Benke, Márton}, doi = {10.1007/s11663-021-02412-2}, journal-iso = {METALL MATER TRANS B}, journal = {METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE}, volume = {53}, unique-id = {32602562}, issn = {1073-5615}, year = {2022}, eissn = {1543-1916}, pages = {730-743}, orcid-numbers = {Kaptay, György/0000-0003-4419-142X} } @article{MTMT:32601116, title = {Development of TiB and nanocrystalline Ti-reinforced novel hybrid Ti nanocomposite produced by powder metallurgy}, url = {https://m2.mtmt.hu/api/publication/32601116}, author = {Angel, Dávid Ádám and Mikó, Tamás and Kristály, Ferenc and Benke, Márton and Gácsi, Zoltán}, doi = {10.1007/s10853-021-06833-x}, journal-iso = {J MATER SCI}, journal = {JOURNAL OF MATERIALS SCIENCE}, volume = {57}, unique-id = {32601116}, issn = {0022-2461}, year = {2022}, eissn = {1573-4803}, pages = {4130-4144}, orcid-numbers = {Kristály, Ferenc/0000-0002-0075-5994} } @article{MTMT:32475922, title = {Complex Avrami kinetics of TiB2 transformation into TiB whiskers during sintering of Ti-TiB2 nanocomposites}, url = {https://m2.mtmt.hu/api/publication/32475922}, author = {Angel, Dávid Ádám and Mikó, Tamás and Kristály, Ferenc and Benke, Márton and Gácsi, Zoltán and Kaptay, György}, doi = {10.1016/j.jallcom.2021.162442}, journal-iso = {J ALLOY COMPD}, journal = {JOURNAL OF ALLOYS AND COMPOUNDS}, volume = {894}, unique-id = {32475922}, issn = {0925-8388}, abstract = {The kinetics of transformation of 5 w% TiB2 nano-particles (50 nm diameter) dispersed and pressed (1.5 GPa) in the of Ti matrix (150 µm diameter) into TiB nano-whiskers was studied as a function of temperature (800–900–1000 °C) and time (5–720 min) in 25 experiments in total, by vacuum sintering. The classical one-step Avrami kinetics does not properly describe this transformation due to the formation of oxide inhibitors from contaminants. However, the same results could be perfectly described by a complex Avrami kinetics supposing two parallel steps of transformations: i). fast transformation along the initially metallic Ti/TiB2 interface and ii). delayed transformation along contaminated Ti/TiB2 interface. Data for kinetic calculation was obtained by X-ray diffraction and Rietveld refinement on the sintered samples. Extrapolating the experimental results by the complex Avrami model beyond the measured temperature interval it was found that at and above about 1050 °C, the second step is missing due to the fast dissolution of oxide films in the beta-Ti matrix, leading to very fast kinetics.}, keywords = {Transformation kinetics; TiB in Ti matrix; TiB whiskers; complex Avrami kinetics}, year = {2022}, eissn = {1873-4669}, orcid-numbers = {Kristály, Ferenc/0000-0002-0075-5994; Kaptay, György/0000-0003-4419-142X} } @article{MTMT:32531392, title = {Characterization of Residual Stresses Induced into Bearing Rings by Means of Turning in Soft State Using Different Turning Parameters}, url = {https://m2.mtmt.hu/api/publication/32531392}, author = {Zaghal, Jawad and Mertinger, Valéria and Filep, Ádám and Varga, Gyula and Benke, Márton}, doi = {10.36897/jme/144299}, journal-iso = {J MACHINE ENG}, journal = {JOURNAL OF MACHINE ENGINEERING}, volume = {21}, unique-id = {32531392}, issn = {1895-7595}, year = {2021}, pages = {49-56}, orcid-numbers = {Zaghal, Jawad/0000-0003-3374-7947; Mertinger, Valéria/0000-0002-5951-0801; Varga, Gyula/0000-0002-1956-790X} }