Transactions of the Indian Institute of Metals

, Volume 71, Issue 11, pp 2623–2629 | Cite as

Numerical Simulation of Brazing Aluminium Alloys with Al–Si Alloys

  • J. LacazeEmail author
  • B. Jacques
  • T. Mazet
  • M. Vynnycky
Technical Paper


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.


Brazing Aluminium alloys Solid-state diffusion Melting 


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Copyright information

© The Indian Institute of Metals - IIM 2018

Authors and Affiliations

  1. 1.CIRIMAT, Université de ToulouseToulouseFrance
  2. 2.Fives CryoGolbey CedexFrance
  3. 3.Department of Materials Science and EngineeringKTH Royal Institute of TechnologyStockholmSweden

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