Abstract
The influence of the body-metal powder size on the microchanneling behavior and the lining-layer formation in the powder-metallurgical microchanneling process was investigated using the combination of iron powder and copper wire. Iron powders 45 μm and 110 μm in average diameters were examined. Open microchannels and clear lining layers were formed in all specimens. The coarser iron powder tended to reduce the homogenization rate of the composition of the lining layer.
