Analysis of Grain-Boundary Sliding with Rotating Hexagonal Particles
When the sliding of the grain boundary containing hexagonal particles is accommodated by grain-boundary diffusion, we evaluate the sliding rate and the stress distribution on the boundary, by taking the particle rotation and the intrinsic boundary viscosity into account. The sliding rate was obtained by the energy-balance method, and the particle-rotation rate by a condition of minimum energy-dissipation. With increasing boundary viscosity, the rotation rate increases and then decreases after a maximum. The sliding rate is enhanced by the particle rotation, and decreases with the boundary viscosity.
Daniel G. Sanders
B. N. Kim et al., "Analysis of Grain-Boundary Sliding with Rotating Hexagonal Particles", Key Engineering Materials, Vol. 433, pp. 305-310, 2010