Numerical simulation of type II subgrain growth ? anisotropic surface energy. Representation of a combination of the 3 Euler angles in different colour. Grain boundaries with a lattice misorientation angle above 15Â° are shown in black. Each picture represents 100 model timesteps. From: Piazolo, S., Jessell, M. J., Prior, D. J., Bons, P. D. 2004. The integration of experimental in-situ EBSD observations and numerical simulations: a novel technique of microstructural process analysis. Journal of Microscopy, 213, 273-284.