Evaluation of slip transfer through WC grain boundaries in cemented carbides

被引：3
|
作者：
Lay, S. [1 ]
机构：
[1] Univ Grenoble Alpes, CNRS, Grenoble INP, SIMAP, F-38000 Grenoble, France
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2021年 / 99卷
关键词：
WC; Grain boundaries; Dislocation transmission; Plastic deformation; TRANSMISSION ELECTRON-MICROSCOPE; TUNGSTEN CARBIDE; DEFECT STRUCTURE; DISLOCATION INTERACTIONS; DEFORMATION MECHANISMS; PLASTIC-DEFORMATION; TILT BOUNDARIES; CO; NUCLEATION; INTERFACES;
D O I：
10.1016/j.ijrmhm.2021.105584
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Geometrical calculations are performed to evaluate the resistance of WC grain boundaries to transfer plastic deformation in WC-Co cemented carbides. The interaction of dislocation pile-ups with the most frequent CSL and random grain boundaries are studied. Based on the minimum grain boundary residue criterion, E = 2 and E = 4 grain boundaries are more resistant to dislocation propagation than E = 13a, E = 97 and a large part of investigated random grain boundaries. Controlling the amount of E = 2 and E = 4 grain boundaries, which mostly arise from the powder, could help in tuning the material properties according the desired application.
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页数：9
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