Simulation of Anisotropic Particle Shape Development during 2D Transformation

Abstract

Simulations were conducted of transformations involving anisotropic particles growing into a matrix of simultaneously growing isotropic particles. The ultimate shape development of the anisotropic particles, present in dilute concentration, was determined. The faster growing directions are found to impinge neighboring grains earlier in the transformation, thus creating a final particle morphology that is less eccentric than the shape would be if grown in isolation. The extent of this effect was determined as a function of intrinsic growth rate anisotropy and compared with analytical predictions.