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Numerical Simulation of Brazing Aluminium Alloys with Al-Si Alloys
Univ Toulouse, CIRIMAT, 4 Allee Monso, F-31030 Toulouse, France..
Univ Toulouse, CIRIMAT, 4 Allee Monso, F-31030 Toulouse, France.;Fives Cryo, 25 Bis Rue Ft,BP 87, F-88194 Golbey, France..
Fives Cryo, 25 Bis Rue Ft,BP 87, F-88194 Golbey, France..
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-8318-1251
2018 (English)In: Transactions of the Indian Institute of Metals, ISSN 0972-2815, E-ISSN 0975-1645, Vol. 71, no 11, p. 2623-2629Article in journal (Refereed) Published
Abstract [en]

Joining parts using low-melting temperature alloys has long been used for manufacturing complex components such as heat exchangers made of aluminium alloys. Investigations of the process have shown that core/clad interaction during heating and brazing can lead to a significant decrease in the amount of liquid available for joint formation. This study presents a transient one-dimensional model for the process that takes into account the diffusion of silicon and the movement of the core/clad interface, with the model equations being implemented in the finite element software COMSOL Multiphysics;the results are compared to literature experimental data. Silicon profiles in the core are well described, while there appears a significant difference between predicted and experimental values of remaining clads which suggest a strong effect of silicon diffusion and liquid penetration at core grain boundaries.

Place, publisher, year, edition, pages
SPRINGER INDIA , 2018. Vol. 71, no 11, p. 2623-2629
Keywords [en]
Brazing, Aluminium alloys, Solid-state diffusion, Melting
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-240017DOI: 10.1007/s12666-018-1415-8ISI: 000449788900003Scopus ID: 2-s2.0-85053861789OAI: oai:DiVA.org:kth-240017DiVA, id: diva2:1269287
Note

QC 20181210

Available from: 2018-12-10 Created: 2018-12-10 Last updated: 2018-12-10Bibliographically approved

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Vynnycky, Michael

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