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Abstract: The
spray forming process of Al-6.5Pb-4.5Si-Cu-0.5Sn bearing alloy is
studied using a spray forming equipment. The microstructure and the
mechanical properties of the spray formed steel / Al-Pb composite steel
strip is analyzed. It is shown that the microstructure of the spray
formed Al-Pb layer consisted of the Al-Si matrix and the homogeneously
distributed Pb particles. The refined Pb particles improve the
wear-resistant property of the alloy. After a rolling of 50% reduction
the bonding strength between the spray formed Al-Pb layer and the steel
strip is larger than 50MPa. The composite steel / Al-Pb strip may be a
good potential material to be used for automotive bearing materials.
Keyword: Spray
forming Al-Pb alloy Microstructure
Mechanical properties
CLC No: TF124.39
Received 20010913, received in revised form 20011226
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