摘要: A phase-field model for a general class of multi-phase metallic alloys is proposed which describes both, solidification phenomena as well polycrystalline grain structures. The serves computational method to simulate the motion and kinetics multiple phase boundaries enables visualization diffusion processes transitions in systems. Numerical simulations are presented illustrate capability recover variety complex experimental growth In particular, can be used microstructure evolutions eutectic, peritectic monotectic alloys. addition, structures with effects such wetting, growth, symmetry properties adjacent triple junctions thin film samples stability criteria at described by simulations.