Influence of pulse magnetic field frequency, temperatures and ageing time on magneto-plastic effect in beryllium bronze BrB-2

The experiments show, that imposition of comparatively small magnetic fields can lead to the change of crystal plastic properties. This phenomenon was named magneto-plastic effect. Kinetics of temperature, frequency and time dependences of physical-mechanic properties of beryllium bronze alloy BrB-2 in the process of diffusion-controlled ageing in pulse magnetic field with frequency from 0 to 7 Hz and impulse strength amplitude 557.2 kA/m, under 300, 350, 400 °C and annealing duration from 0 to 2 hours was investigated by method of microhardness and X-ray. The result of given work show, pulse magnetic field exerts a noticeable influence on plastic properties of beryllium bronze and the positive magneto-plastic effect is observed. Explanation of behavior of the alloy in such aging conditions demands further experimental investigation and theoretical analysis. The obtained data give useful information for development of the theoretical ideas of interaction of structural and magnetic defects in the conception of spin-dependent reaction of defects.