CCBuilder: a software that produces synthetic microstructures of WC-Co cemented carbides
Artikel i vetenskaplig tidskrift, 2019

In this paper, the software CCBuilder and its methods to generate synthetic three-dimensional (3D) microstructures of WC-Co cemented carbides are presented. Generating synthetic microstructures is critical, as it enables accurate virtual testing where influences from microstructural parameters can be investigated in a systematic and controlled way. The model of the microstructure is based on a voxel description of the material volume and the WC grains are represented as truncated triangular prisms. The grains are inserted into the simulation domain and to obtain a realistic microstructure a combination of packing and a Monte Carlo Potts simulation is used. The orientations of all individual WC grains are known and it is shown that the microstructure is built up of two interpenetrating networks, the WC grains and the Co phase. Numerical studies are presented to show how input parameters to CCBuilder, such as grain size, grain shape, packing strategy, voxel density, system size, and Monte-Carlo steps affect the resulting simulated microstructure. The obtained microstructures are geometrically realistic and the contiguity of the carbide phase shows very good agreement with published experimental data.

Synthetic microstructure

WC-Co

Hardmetal

Cemented carbide

Potts simulation

Three-dimensional model

Författare

Sven A.E. Johansson

Stiftelsen Chalmers Industriteknik

Mikael Öhman

Chalmers, Fysik, C3SE

Magnus Ekh

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Göran Wahnström

Chalmers, Fysik, Material- och ytteori

International Journal of Refractory Metals and Hard Materials

0263-4368 (ISSN) 2213-3917 (eISSN)

Vol. 78 210-218

Flerskalsmodellering av plastisk deformation av hårdmetaller.

Vetenskapsrådet (VR), 2017-01-01 -- 2020-12-31.

Ämneskategorier

Teknisk mekanik

Keramteknik

Metallurgi och metalliska material

DOI

10.1016/j.ijrmhm.2018.09.011

Mer information

Senast uppdaterat

2018-10-19