… or stepped grain boundary when diffusional flow … diffusional creep in a polycrystal in which
grain boundaries slide? 4) How is this creep rate affected by grain shape, and grain boundary …

… diffusion are clearly identifiable. In order to prevent grain growth and thus to enable steady-state
diffusion creep … ) have a uniform grain shape and a uniform grain size of nm dimensions …

… zones during creep and … H) diffusional creep.[1,3,4] This is because, in magnesium alloys,
nickel-base superalloys, and superplastic diffusional creep, atoms flow from grain boundaries …

… MD observation of diffusion creep in our model microstructures, our stresses were chosen
to be typically two orders of magnitude higher than experimental creep stresses. Hence, …

… -creep mechanism, our simulations reveal an increase in the creep rate during grain growth
… In Section 3, we present the simulation evidence for grain-boundary diffusion creep as the …

… In this paper we review our recent studies of GB self diffusion and GB diffusion creep in fcc
Pd. Using molecular-dynamics simulation as our tool, these studies provide a comprehensive …

… diffusion creep has been shown to be important in polycrystalline metals, where it is accompanied
by grainboundary … The impression has sometimes been given8 that diffusion creep is …

… We will now determine the displacements on a boundary due to diffusion creep and to sliding
and see whether these always elongate the specimen. The component of eqn. (8) parallel …

… copper grain-boundary diffusion in the above materials are discussed. The effect exerted
by grain boundary state and grain boundary diffusion fluxes of impurity on creep mechanisms …

… agrees with the previous solutions for diffusional creep controlled by grain-boundary diffusion,
except for the numerical constant. For a three-dimensional polycrystal, Coble Citation[2], …