Abstract
Electropolishing of multiphase materials, for example, of the WC-Co hard metal, is very difficult. Therefore only a few examples of the transmission electron micrograph of the WC-Co hard metal have been published. In this paper the preparation method of the foil was described and some micrographs are shown. Subgrain boundaries and dislocations were observed in WC phase, and many stacking faults, in Co phase.
