Effect of Alloy Deformation on the Average Spacing Parameters of Non-Deforming Particles

摘要

It is shown on the basis of stereological definitions and a few simple experiments that the commonly used average dispersion parameters, area fraction (A/sub A/)/sub beta /, areal particle density N/sub A beta / and mean free path lambda/sub alpha /, remain invariant during plastic deformation in the case of non-deforming equiaxed particles. Directional effects on the spacing parameters N/sub A beta / and lambda/sub alpha / arise during uniaxial deformation by rotation and preferred orientation of nonequiaxed particles. Particle arrangement in stringered or layered structures and the effect of deformation on nearest neighbor distances of particles and voids are briefly discussed in relation to strength and fracture theories. (ERA citation 05:022655)