Chemistry of binder phase grain boundary in WC–Co based cemented carbide

• A binder phase grain boundary in a WC–Co–Cr material was indentified with EBSD.
• A TEM specimen was produced including the grain boundary of interest.
• EDX analysis showed segregation of W and Cr to the binder phase grain boundary.

A binder phase grain boundary was located in a WC–Co–Cr cemented carbide using electron backscatter diffraction. A transmission electron microscopy specimen was produced including the grain boundary of interest. An energy dispersive X-ray analysis showed segregation of W and Cr to the grain boundary. However, no impurity atoms were found.