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Experimental evaluation of aluminothermic welds
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SYSNO ASEP 0576186 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Experimental evaluation of aluminothermic welds Author(s) Zeman, L. (CZ)
Valach, J. (CZ)
Zlámal, P. (CZ)
Krčmářová, N. (CZ)
Koudelková, Veronika (UTAM-F) RID, SAI
Zeman, J. (CZ)Number of authors 6 Source Title Acta Polytechnica CTU Proceedings, Young Transportation Engineers Conference 2022, 41. - Prague : Czech Technical University in Prague, 2023 / Nouzovský L. ; Drábek M. ; Richter P. ; Růžička J. - ISBN 978-80-01-07224-0 Pages s. 89-97 Number of pages 9 s. Publication form Online - E Action Young Transportation Engineers Conference Event date 24.11.2022 - 24.11.2022 VEvent location Prague Country CZ - Czech Republic Event type CST Language eng - English Country CZ - Czech Republic Keywords aluminothermic reaction ; train gauges ; hardness ; profilometry ; scanning electron microscope OECD category Materials engineering Institutional support UTAM-F - RVO:68378297 EID SCOPUS 85175807286 DOI 10.14311/APP.2023.41.0089 Annotation The article presents a study of the mechanical processes occurring during the aluminother-mic reaction using experimental methods (strain gauges, digital image correlation, thermography,scanning electron microscopy, profilometry). The aluminothermic reaction is a highly efficient weldingmethod due to its exothermic behaviour, however, it places considerable demands not only on thewelding technique, but also on the capabilities of the experimental methods used - these limitationsare also discussed in the article. The aluminothermic reaction is associated with the formation of alocalised heat source with a time evolution dictated by the technological procedure, which manifestsitself in heat propagation to the surrounding weld material. The unequal evolution of the temperaturefield is the fundamental cause of the appearance of the heat affected zone or local deformations orsurface curvature, which was the focus of the experimental methods deployed above and the results ofwhich are shown in the article. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2024 Electronic address https://doi.org/10.14311/APP.2023.41.0089
Number of the records: 1