Mechanisms of Liquid Film Migration (LFM) in Aluminum Brazing Sheet

971849

05/19/1997

Event
1995 Vehicle Thermal Management Systems Conference and Exhibition
Authors Abstract
Content
The phenomenon of liquid film migration (LFM) in aluminum brazing is described in a companion paper [1]. To clarify the mechanism, the effect of core alloy homogenization, cold work prior to brazing, and brazing temperature on the LFM kinetics has been studied. Based on microstructures, LFM kinetics, and concentration profile data, factors influencing the migration rate of liquid films have been analyzed. Several possible driving forces for LFM are proposed: (1) coherency strain energy, (2) reduction of particle/matrix interfacial energy, and (3) reduction of energy in recovered dislocation structure or subgrain boundaries in the case of lightly cold worked brazing sheet.
Meta TagsDetails
DOI
https://doi.org/10.4271/971849
Pages
10
Citation
Yang, H., and Woods, R., "Mechanisms of Liquid Film Migration (LFM) in Aluminum Brazing Sheet," SAE Technical Paper 971849, 1997, https://doi.org/10.4271/971849.
Additional Details
Publisher
Published
May 19, 1997
Product Code
971849
Content Type
Technical Paper
Language
English