Reasons for the Difference of the Fields of the Peaks of the Reversible and Differential Magnetic Permeability in Deformed Low-Carbon Steels

摘要

This paper considers the reasons for the differences in the position of the peaks of reversible magnetic permeability in plastically deformed low-carbon steels and of the corresponding peaks of differential magnetic permeability. The discussion deals with two of three peaks caused by, correspondingly, reversible and irreversible shifts of 90 degrees domain walls. These peaks are directly connected with the residual stresses and can serve for their nondestructive control.