Fracture Energy Measurement of Prismatic Plane and Σ2 Boundary in Cemented Carbide

Abstract The grain boundary network of WC in WC-Co is important, as cracks often travel intergranularly. This motivates the present work, where we experimentally measure fracture energy Σ2 twist boundaries between crystals using a double cantilever beam opened with wedge under displacement control WC-10wt%Co sample. this type was compared cleaving { $$10\overline{1}0$$ 10 1 ¯ 0 } prismatic planes single crystal. Fracture energies 7.04 ± 0.36 Jm −2 and 3.57 0.28 were measured for plane boundaries, respectively.