INVESTIGATION ON SPRAY DEPOSITED Cu-Pb ALLOY

The paper has investigated the microstructure,the surface morphology of bending fracture and the influence of cool-rolling deformation on density of spray deposited Cu-24Pb-1Sn alloy plate compact. The result shows that the lead phase of spray deposited alloy has fine structure and homogeneous distribution without macro-segregation. After cool-rolling, the relative density of plate compact can be raised from 96% as-spray deposited to 100%. The paper has also discussed the gravity pegregation of alloy and the problem of controlling the ratio of liquid-solid phase during the process of spray deposition of alloy.