Carbide grain growth: the effect of grain size distributions
(English)Manuscript (preprint) (Other academic)
It is important to understand the WC grain growth behavior in order to obtain good mechanical properties when manufacturing cemented carbides. In the present study the WC grain growth for dierent initial grain size distributions during sintering is studied theoretically using a model based on three processes; 2-D nucleation of atomic planes, long-range diusion and interface friction. Simulations clearly show that the initial grain size distribution inuences the growth behavior significantly. Bimodal powders show a more dramatic grain growth than powders having a lognormalgrain size distribution.
Cemented carbide, grain growth, abnormal grain growth, simulation
IdentifiersURN: urn:nbn:se:kth:diva-32429OAI: oai:DiVA.org:kth-32429DiVA: diva2:410619
QC 201104262011-04-142011-04-142011-04-26Bibliographically approved