Microscopic phase-field study for mechanisms of directional coarsening and the transformation of rafting types in Ni-Al-V ternary alloys

► Directional coarsening mechanisms and transformation on rafting types caused by the coupling of exterior and internal stress. ► Improves microscopic phase-field method with adding external stress. ► The directional diffusion studied by the occupation probability of atom in the lattice. ► The different effects of diffusion on stress for precipitates.