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Modeling the Influence of Orientation Texture on the Strength of WC–Co Composites
Author(s) -
Kim ChangSoo,
Massa Ted R.,
Rohrer Gregory S
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01381.x
Subject(s) - materials science , texture (cosmology) , composite material , contiguity , microstructure , anisotropy , fracture (geology) , transverse plane , perpendicular , orientation (vector space) , geometry , structural engineering , mathematics , optics , artificial intelligence , computer science , image (mathematics) , biology , engineering , ecology , physics
Two‐dimensional finite element simulations were used to study the effects of orientation texture on the transverse rupture strengths of WC–Co composites. The model incorporates observed microstructural geometries, anisotropic thermal and elastic properties, and a fracture criterion that reproduces the strengths of known specimens. The results show that the greatest potential for increasing the strength occurs when the [001] axes of the carbide grains are orientated perpendicular to the sample loading direction. Furthermore, the strength increases in proportion to the degree of texture, and the texture‐derived strength enhancement is greater in microstructures with a larger contiguity.