Effect of Grain Rotation on the Strain-Softening Behavior in Nanocrystalline Materials
We postulated a softening model involving grain rotation that results in diffusion-accommodated grain-boundary sliding. This numerical model was used to compute the proportion evolution of grains within shear bands and was also employed to predict the softening of nanocrystalline materials considering non-homogeneous plastic deformation due to shear bands. The effect of softening mechanism for total stress-strain relation and the grain size and mean maximum Schmid factor effect was also considered in our model.
J. Q. Zhou et al., "Effect of Grain Rotation on the Strain-Softening Behavior in Nanocrystalline Materials", Advanced Materials Research, Vols. 311-313, pp. 516-520, 2011