Theory of the Snoek Effect in Ternary B.C.C. Alloys : III Hydrostatic Relaxation

Abstract

Abstract Interstitial atoms in ternary b.c.c. alloys exhibit hydrostatic relaxation, if an applied stress has a dilatational stress component. The effect is absent in binary alloys. Hydrostatic relaxation, in contrast to orientation relaxation effect, involves long-range diffusion; in order to understand various aspects of the process, calculations are made for imaginary lattices. Internal friction curves are computed for different solute concentrations in a real three-dimensional lattice. The height and the temperature of the peak are compared for hydrostatic relaxation and orientation relaxation.