Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1677993 | Ultramicroscopy | 2011 | 5 Pages |
A method for quickly producing sharp and site-specific atom probe specimens from WC–Co based cemented carbides was developed using a combination of electropolishing, controlled back-polishing and FIB milling. Also, a method for measuring the amount of segregated atoms to an interface between two phases with a big difference in field needed for field evaporation was developed. Using atom probe tomography, the interface chemistry of WC/WC grain boundaries, WC/(M,W)C phase boundaries and WC/binder phase boundaries was analysed. In addition, the transition metal solubility in WC was determined.
Research highlights► We develop a method for producing specimens from WC–Co based cemented carbides. ► Measure segregated atoms to an interface between phases with different field evaporation field. ► The interface chemistry in cemented carbides. ► The transition metal solubility in WC.