Abstract
Coalescence of precipitates is a common kinetic phenomenon. The phase-field method can simulate coalescence of precipitates without any ad hoc assumptions. However, independent of long range effects (e.g. lattice misfit) the method predicts a high coalescence rate when applied to systems with a high volume fraction of precipitates. We show that this is a result of ignoring the local phenomenon in the interface regions, which is an approximation adopted by many other simulation techniques. An improved coalescence rate is achieved by properly addressing this local phenomenon through introducing composition and phase dependence of diffusion mobility.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
