The interracial bonding strength of steel/Al - Pb composite strips manufactured by spray forming has been studied. It is found that the interracial shearing strength of 72 MPa can be reached when the steel/Al - Pb composite strips are subjected to a total rolling reduction of 50% followed by annealing at 320℃ for 5 hours. The high interracial bonding strength is due to the formation of diffusion layer between the steel substrate and the Al - Pb alloy.
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