Substitutional Relaxations in an Iron–15% Germanium Alloy

Abstract A substitutional relaxation peak has been investigated in an iron–15% germanium alloy by free-decay internal-friction technique in an evacuated inverted torsion pendulum. The parameters Q R , ∆ M , τ 0 , and β for the Zener peak are calculated. The presence of a grain-boundary peak at a temperature higher than the Zener peak is also reported.