Very-small angle neutron scattering study on grain coarsening inhibition by V-doping of WC-Co composites
Journal article, 2019
The mechanical properties of cemented carbides can be tuned by controlling WC grain coarsening and the simultaneous growth of the binder pocket size during the sintering. So far, bulk studies considering this phenomenon are scarce, but here, we report the first very-small angle neutron scattering (VSANS) study on cemented carbides. VSANS is supplemented with electron backscatter diffraction (EBSD) and the microstructural refinement by increasing V-doping (0, 0.02, 0.22, and 0.76 wt%) is quantified. The capability of VSANS as a non-destructive bulk probe for cemented carbides is shown, paving way for forthcoming in-situ studies.
Electron backscattering diffraction (EBSD)
Cemented carbide
Grain refining
Small angle neutron scattering (SANS)
Grain growth
Author
Ahmet Bahadir Yildiz
Royal Institute of Technology (KTH)
Jonathan Weidow
Chalmers, Physics, Materials Physics
V. Ryukhtin
Nuclear Physics Institute
S. Norgren
Sandvik
Uppsala University
Göran Wahnström
Chalmers, Physics, Materials and Surface Theory
P. Hedstrom
Royal Institute of Technology (KTH)
Scripta Materialia
1359-6462 (ISSN)
Vol. 173 106-109Subject Categories
Ceramics
Materials Chemistry
Other Physics Topics
Medical Materials
DOI
10.1016/j.scriptamat.2019.08.005