Author:
Emmanuel Max,Gavalda-Diaz Oriol,Sernicola Giorgio,M’saoubi Rachid,Persson Tomas,Norgren Susanne,Marquardt Katharina,Britton T. Ben,Giuliani Finn
Abstract
AbstractThe grain boundary network of WC in WC-Co is important, as cracks often travel intergranularly. This motivates the present work, where we experimentally measure the fracture energy of Σ2 twist grain boundaries between WC crystals using a double cantilever beam opened with a wedge under displacement control in a WC-10wt%Co sample. The fracture energy of this boundary type was compared with cleaving {$$10\overline{1}0$$
10
1
¯
0
} prismatic planes in a WC single crystal. Fracture energies of 7.04 ± 0.36 Jm−2 and 3.57 ± 0.28 Jm−2 were measured for {$$10\overline{1}0$$
10
1
¯
0
} plane and Σ2 twist boundaries, respectively.
Publisher
Springer Science and Business Media LLC
Subject
General Engineering,General Materials Science
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