@article{MTMT:34447815,
	title = {The Effects of ArC Voltage and Shielding Gas Type on the Microstructure of Wire ArC Additively Manufactured 2209 Duplex Stainless Steel},
	url = {https://m2.mtmt.hu/api/publication/34447815},
	author = {Kemény, Dávid Miklós and Sándor, Bence and Varbai, Balázs and Katula, Levente},
	doi = {10.2478/adms-2023-0023},
	journal-iso = {ADVANCES IN MATERIALS SCIENCE},
	journal = {ADVANCES IN MATERIALS SCIENCE},
	volume = {23},
	unique-id = {34447815},
	issn = {1730-2439},
	abstract = {Duplex stainless steels (DSSs) are widely used due to their corrosion resistance. Austenite and ferrite determine the excellent properties. Ferrite provides strength and good corrosion resistance, while austenite provides toughness and weldability. During our research, samples were produced with ER 2209 duplex steel wire using wire arc additive manufacturing (WAAM). Two different 17 V and 19 V arc voltages were used during the production. Two shielding gases were used for each voltage: M12-ArC-2.5 and M12-ArHeC-20/2. The research aimed to determine the ferrite ratio as a function of the welding parameters. The ferrite (or austenite) content must be between 30% and 70% for duplex stainless steel welds, according to the ISO 17781 standard. Based on our research, it can be stated that the austenite ratio increases as the voltage increases, thus failing to fulfill the standard's requirements. The helium content reduced the ferrite ratio even when the 17 V voltage was used due to the gas's higher ionization potential. During the metallographic examination, our welded samples met the standard requirements for the austenite content for 17 V arc voltage and M12-ArC-2.5 shielding gas. The ferrite content in the entire sample cross-section fell between 30-42% during feritscope and image analysis measurements. These welding parameters can be recommended for industrial applications.},
	year = {2023},
	eissn = {2083-4799},
	pages = {62-82},
	orcid-numbers = {Varbai, Balázs/0000-0003-0497-7292}
}

@article{MTMT:34221700,
	title = {Global Approach on the Shear and Cross Tension Strength of Resistance Spot Welded Thin Steel Sheets},
	url = {https://m2.mtmt.hu/api/publication/34221700},
	author = {Májlinger, Kornél and Katula, Levente and Varbai, Balázs},
	doi = {10.3311/PPme.23184},
	journal-iso = {PERIOD POLYTECH MECH ENG},
	journal = {PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING},
	volume = {67},
	unique-id = {34221700},
	issn = {0324-6051},
	abstract = {Several correlations from the professional literature describing the shear and cross tension strength (STS and CTS) of resistance spot welded (RSWed) thin steel sheets were investigated. Some of them need chemical composition or weld nuggets strength hardness as input parameters, making them hardly applicable in the planning stage of the joints. Using STS and CTS data collected from over 250 papers, selected correlations were tested, whether they are applicable to predict the STS and CTS of the RSWed joints at the planning stage to help designers plan their static-loaded welds strength. Most correlations had limitations in the applicable base materials' tensile strength range. Therefore, new equations for STS and CTS are proposed, which can be used to plan in the 300–18900 MPa base metals tensile strength range for similar and dissimilar RSWed joints of thin steel sheets.},
	year = {2023},
	eissn = {1587-379X},
	pages = {315-339},
	orcid-numbers = {Májlinger, Kornél/0000-0002-6878-1611; Varbai, Balázs/0000-0003-0497-7292}
}

@article{MTMT:34845082,
	title = {Nagynyomású hidrogénatmoszférás kemence gyártása szénacélok elridegedésének vizsgálatához},
	url = {https://m2.mtmt.hu/api/publication/34845082},
	author = {Varbai, Balázs and Katula, Levente and Dobránszky, János and Fodor, Olivér},
	doi = {10.1556/112.2023.00209},
	journal-iso = {SCI SEC},
	journal = {SCIENTIA ET SECURITAS},
	volume = {4},
	unique-id = {34845082},
	issn = {3057-9759},
	abstract = {A hidrogén tárolása iránti igény egyre növekszik, melynek oka az, hogy a hidrogén mint alternatív energiahordozó jelentős szerepet játszik a szén-dioxidkibocsátás-csökkentési törekvésekben. Azonban, az elridegedési folyamatok körében a hidrogén által előidézett károsodások jelentik a legkomolyabb problémát az acélokra nézve. Kutatómunkánk során egy nagynyomású hidrogénatmoszférás hőkezelésre alkalmas autoklávot terveztünk, majd gyártottunk. Az autoklávban P355 NH minőségű alapanyagból kimunkált szabványos Charpy-féle ütőpróbatesteket hőkezeltünk 150 °C-on, 40 bar túlnyomáson, 200 órán keresztül, tiszta hidrogén atmoszférában. A vizsgálatok eredményei alapján megállapítottuk, hogy a jelentős mértékű elridegedés a hidrogénezési folyamat után sem történt.},
	keywords = {hidrogén; autokláv; elridegedés; ütővizsgálat},
	year = {2023},
	eissn = {2732-2688},
	pages = {209-218},
	orcid-numbers = {Varbai, Balázs/0000-0003-0497-7292; Dobránszky, János/0000-0001-7483-7549}
}

@CONFERENCE{MTMT:32794775,
	title = {A hidrogén ridegítő hatása a duplex korrózióálló acélok hegesztett kötéseiben},
	url = {https://m2.mtmt.hu/api/publication/32794775},
	author = {Breznay, Csaba and Varbai, Balázs and Katula, Levente},
	booktitle = {XXX. Nemzetközi Gépészeti Konferencia - OGÉT 2022},
	unique-id = {32794775},
	year = {2022},
	pages = {100-104},
	orcid-numbers = {Varbai, Balázs/0000-0003-0497-7292}
}

@article{MTMT:33018332,
	title = {A hidrogén okozta károsodások szaknyelvének alapvető terminológiája},
	url = {https://m2.mtmt.hu/api/publication/33018332},
	author = {Dobránszky, János and Bitay, Enikő and Katula, Levente and Varbai, Balázs},
	journal-iso = {ANYAGVIZSGÁLÓK LAPJA},
	journal = {ANYAGVIZSGÁLÓK LAPJA},
	volume = {2022},
	unique-id = {33018332},
	issn = {1215-8410},
	year = {2022},
	eissn = {1787-5072},
	pages = {6-9},
	orcid-numbers = {Dobránszky, János/0000-0001-7483-7549; Bitay, Enikő/0000-0003-2991-7333; Varbai, Balázs/0000-0003-0497-7292}
}

@article{MTMT:32547053,
	title = {Prediction of the Shear Tension Strength of Resistance Spot Welded Thin Steel Sheets from High- to Ultrahigh Strength Range},
	url = {https://m2.mtmt.hu/api/publication/32547053},
	author = {Májlinger, Kornél and Katula, Levente and Varbai, Balázs},
	doi = {10.3311/PPme.18934},
	journal-iso = {PERIOD POLYTECH MECH ENG},
	journal = {PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING},
	volume = {66},
	unique-id = {32547053},
	issn = {0324-6051},
	year = {2022},
	eissn = {1587-379X},
	pages = {67-82},
	orcid-numbers = {Májlinger, Kornél/0000-0002-6878-1611; Varbai, Balázs/0000-0003-0497-7292}
}

@article{MTMT:33018363,
	title = {A hidrogén tárolásának és szállításának lehetőségei},
	url = {https://m2.mtmt.hu/api/publication/33018363},
	author = {Varbai, Balázs and Katula, Levente and Dobránszky, János},
	journal-iso = {ANYAGVIZSGÁLÓK LAPJA},
	journal = {ANYAGVIZSGÁLÓK LAPJA},
	volume = {2022},
	unique-id = {33018363},
	issn = {1215-8410},
	year = {2022},
	eissn = {1787-5072},
	pages = {16-21},
	orcid-numbers = {Varbai, Balázs/0000-0003-0497-7292; Dobránszky, János/0000-0001-7483-7549}
}

@inproceedings{MTMT:31997450,
	title = {Különböző hozaganyagok hatása kristályosodási repedési érzékenységre, alumínium hegesztésekor},
	url = {https://m2.mtmt.hu/api/publication/31997450},
	author = {Hirt, Péter and Varbai, Balázs and Katula, Levente and Májlinger, Kornél},
	booktitle = {XXX. Jubileumi Nemzetközi Hegesztési Online Konferencia},
	unique-id = {31997450},
	year = {2021},
	pages = {93-103},
	orcid-numbers = {Májlinger, Kornél/0000-0002-6878-1611}
}

@article{MTMT:32473932,
	title = {Alumíniumötvözetek kristályosodási repedésénak vizsgálata - különböző hegesztő hozaganyagok összehasonlítása},
	url = {https://m2.mtmt.hu/api/publication/32473932},
	author = {Hirt, Péter and Varbai, Balázs and Katula, Levente},
	journal-iso = {HEGESZTÉSTECHNIKA},
	journal = {HEGESZTÉSTECHNIKA},
	volume = {32},
	unique-id = {32473932},
	issn = {1215-8372},
	year = {2021},
	pages = {45-53},
	orcid-numbers = {Varbai, Balázs/0000-0003-0497-7292}
}

@article{MTMT:31955504,
	title = {A védőgáz nitrogéntartalmának hatása ausztenites acélok TIG-hegesztésekor},
	url = {https://m2.mtmt.hu/api/publication/31955504},
	author = {Májlinger, Kornél and Sarkantyús, Ádám and Katula, Levente and Varbai, Balázs},
	journal-iso = {HEGESZTÉSTECHNIKA},
	journal = {HEGESZTÉSTECHNIKA},
	volume = {32},
	unique-id = {31955504},
	issn = {1215-8372},
	year = {2021},
	pages = {37-44},
	orcid-numbers = {Májlinger, Kornél/0000-0002-6878-1611; Varbai, Balázs/0000-0003-0497-7292}
}