Experimental Study About Dissimilar Metals Between Copper and Aluminum in Furnace Brazing[J]. Aeronautical Manufacturing Technology, 2010, 53(11): 73-75.
Experimental Study About Dissimilar Metals Between Copper and Aluminum in Furnace Brazing[J]. Aeronautical Manufacturing Technology, 2010, 53(11): 73-75. DOI: 10.16080/j.issn1671-833x.2010.11.009.
The furnace brazing of Cu/LF21 by using different solder thickness of BAlSiMg is studied. The results show that the solder layer is so thin that the liquid phase produced by eutectic reaction cannot fill the entire weld completely while the more brittle phase CuAl
2
and AlCu produced in the brazing seam zone can lead to coming along the micro-cracks in the cooling process of the weld so that both of them can lead to reducing joint strength of solder joints. Therefore
to obtain the ideal joint
the brittle phases in weld must be a non-continuous distribution or the dispersion state of existence.