Study of the weldability of molybdenum tubular fittings of thermal converters

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dc.citation.epage11
dc.citation.issue4
dc.citation.journalTitleУкраїнський журнал із машинобудування і матеріалознавства
dc.citation.spage1
dc.contributor.affiliationLviv Polytechnic National University
dc.contributor.authorBiloborodchenko, Volodymyr
dc.contributor.authorBiloborodchenko, Stanislav
dc.coverage.placenameЛьвів
dc.coverage.placenameLviv
dc.date.accessioned2025-03-06T10:02:32Z
dc.date.created2023-02-28
dc.date.issued2023-02-28
dc.description.abstractThe purpose of the work is to optimize the technological solution for the production of molybdenum tubular fittings of heat exchangers (TCs) that work at high temperatures and external mechanical load on calculated and practical modes of electron beam welding. The results of welding largely depend on the degree of contamination of the material, and the combined calculation of EBW parameters according to a set of existing methods does not give an unambiguous solution, but allows to outline the range of their acceptable values for further experimental clarification. The proposed methods of testing welded fittings according to mechanical parameters and resistance to crack formation with simultaneous simulated application of operating temperature load (500–1200 °C) initiate the detection of cracks and provide information on the actual strength and plasticity of the metal of the welding zone in real conditions of operation of the fittings.
dc.format.extent1-11
dc.format.pages11
dc.identifier.citationBiloborodchenko V. Study of the weldability of molybdenum tubular fittings of thermal converters / Volodymyr Biloborodchenko, Stanislav Biloborodchenko // Ukrainian Journal of Mechanical Engineering and Materials Science. — Lviv : Lviv Politechnic Publishing House, 2023. — Vol 9. — No 4. — P. 1–11.
dc.identifier.citationenBiloborodchenko V. Study of the weldability of molybdenum tubular fittings of thermal converters / Volodymyr Biloborodchenko, Stanislav Biloborodchenko // Ukrainian Journal of Mechanical Engineering and Materials Science. — Lviv : Lviv Politechnic Publishing House, 2023. — Vol 9. — No 4. — P. 1–11.
dc.identifier.doidoi.org/10.23939/ujmems2023.04.001
dc.identifier.urihttps://ena.lpnu.ua/handle/ntb/63996
dc.language.isoen
dc.publisherВидавництво Львівської політехніки
dc.publisherLviv Politechnic Publishing House
dc.relation.ispartofУкраїнський журнал із машинобудування і матеріалознавства, 4 (9), 2023
dc.relation.ispartofUkrainian Journal of Mechanical Engineering and Materials Science, 4 (9), 2023
dc.relation.references[1] https://aqteck.com.ua/ua/news/termoelektrychni-peretvorjuvachi-owen Thermoelectric converters ARIES. May 14, 2020.
dc.relation.references[2] Kisla G. P., Loboda P. I. Materials Science of Refractory Metals and Compounds K.: KNU Center for educational literature, 2019. 320 p.
dc.relation.references[3] https:/Krohne.com/ Armature of thermometers with a thermocouple.
dc.relation.references[4] https:/wwwtd-etalon.com/Fittings for temperature sensors
dc.relation.references[5] https:/booksgoogle..com.ua/ Protective pipe materials (armature)
dc.relation.references[6] Kisla G. P. Materials science of refractory metals and compounds: a study guide for university students / H. P. Kisla, P. I. Loboda, V. E. Fedorchuk, M. O. Sysoev. K.: Center of Educational Literature, 2017. 320 p.
dc.relation.references[7] Special alloys, RZM and precious metals: study guide / Kutsova V. Z., Nosko O. A., Kovzel M. A. Dnipropetrovsk: NMetAU, 2007. 163 p.
dc.relation.references[8] Demenko V. Mechanical testing of structural materials. National aerospace university “Kharkiv aviation institute”. Kharkiv, 2012. 51 p.
dc.relation.references[9] Field Foster P. The mechanical testing of metals and alloys. Cousens Press, March 1. 2007. 308 p.
dc.relation.references[10] Gurevich S. M. Reference book on welding of non-ferrous metals. K.: Science Dumka, 2010. 512 p.
dc.relation.references[11] Weldability of molybdeum and its alloy sheet// https:/inis.iaea.org/ Sheet welding molybdenum and its alloys
dc.relation.references[12] https:/ www.totalmaterial.com/ Welding of reactive and refractory materials
dc.relation.references[13] https:/ebindustries.com/laser-weldingmolybdeum
dc.relation.references[14] Kvasnytsky V. V. Special methods of welding. Mykolaiv, UDMTU, 2008. 437 p.
dc.relation.references[15] Lebedev B. D., Peremytko V. V. Calculation methods in fusion welding. Dneprodzerzh State Technical University, 2008. 285 p.
dc.relation.references[16] Volodarskyi E. T., Kosheva L. O. Statistical data processing: education. manual. K.: NAU, 2008. 308 p.
dc.relation.referencesen[1] https://aqteck.com.ua/ua/news/termoelektrychni-peretvorjuvachi-owen Thermoelectric converters ARIES. May 14, 2020.
dc.relation.referencesen[2] Kisla G. P., Loboda P. I. Materials Science of Refractory Metals and Compounds K., KNU Center for educational literature, 2019. 320 p.
dc.relation.referencesen[3] https:/Krohne.com/ Armature of thermometers with a thermocouple.
dc.relation.referencesen[4] https:/wwwtd-etalon.com/Fittings for temperature sensors
dc.relation.referencesen[5] https:/booksgoogle..com.ua/ Protective pipe materials (armature)
dc.relation.referencesen[6] Kisla G. P. Materials science of refractory metals and compounds: a study guide for university students, H. P. Kisla, P. I. Loboda, V. E. Fedorchuk, M. O. Sysoev. K., Center of Educational Literature, 2017. 320 p.
dc.relation.referencesen[7] Special alloys, RZM and precious metals: study guide, Kutsova V. Z., Nosko O. A., Kovzel M. A. Dnipropetrovsk: NMetAU, 2007. 163 p.
dc.relation.referencesen[8] Demenko V. Mechanical testing of structural materials. National aerospace university "Kharkiv aviation institute". Kharkiv, 2012. 51 p.
dc.relation.referencesen[9] Field Foster P. The mechanical testing of metals and alloys. Cousens Press, March 1. 2007. 308 p.
dc.relation.referencesen[10] Gurevich S. M. Reference book on welding of non-ferrous metals. K., Science Dumka, 2010. 512 p.
dc.relation.referencesen[11] Weldability of molybdeum and its alloy sheet// https:/inis.iaea.org/ Sheet welding molybdenum and its alloys
dc.relation.referencesen[12] https:/ www.totalmaterial.com/ Welding of reactive and refractory materials
dc.relation.referencesen[13] https:/ebindustries.com/laser-weldingmolybdeum
dc.relation.referencesen[14] Kvasnytsky V. V. Special methods of welding. Mykolaiv, UDMTU, 2008. 437 p.
dc.relation.referencesen[15] Lebedev B. D., Peremytko V. V. Calculation methods in fusion welding. Dneprodzerzh State Technical University, 2008. 285 p.
dc.relation.referencesen[16] Volodarskyi E. T., Kosheva L. O. Statistical data processing: education. manual. K., NAU, 2008. 308 p.
dc.relation.urihttps://aqteck.com.ua/ua/news/termoelektrychni-peretvorjuvachi-owen
dc.rights.holder© Національний університет “Львівська політехніка”, 2023
dc.rights.holder© Biloborodchenko V., Biloborodchenko S., 2023
dc.subjectfittings of heat exchangers
dc.subjectelectron beam welding
dc.subjectsetting parameters of the welding mode
dc.subjectwelded joints of molybdenum fittings
dc.subjectwelding defects
dc.subjecttesting of welded joints
dc.subjectsimulation of working temperature loads
dc.subjectmechanical characteristics of a welded joint
dc.titleStudy of the weldability of molybdenum tubular fittings of thermal converters
dc.typeArticle

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Ukrainian Journal of Mechanical Engineering and Materials Science. – 2023. – Vol. 9, No. 4