title: APT analysis of WC-Co based cemented carbides.
abstract: 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.
authors.affiliation: Department of Applied Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. jonathan.weidow@chalmers.se
authors.forename: Jonathan
authors.initials: J
authors.lastname: Weidow
authors.forename: Hans-Olof
authors.initials: HO
authors.lastname: Andrén