Mechanical properties of solid solutions

For diluted solid solutions on the base of fcc lattice metals (Cu-Si-Ge) the laws of strengthening according to the mechanisms of Fleischer-Friedel and Labusch are considered. Special attention is paid to the problem of strengthening at simultaneous effect of several mechanisms as well as to multicomponent alloying the solid solution. Strengthening of solid solutions on the base of bcc metals (Fe-Ge) is most precisely described with the effect of the atoms dissolved upon the motion of dislocation kinks. Strain strengthening of solid solutions occurs nearly in the same way as in pure metals except the late, stages, when dynamic recovery is determined by the concentration of solid solution (Cu-Ga, Cu-Ge). Mechanism of fatigue crack initiation in bcc and fcc solid solutions is also considered