THE MAGNETOMECHANICAL EFFECT IN ELECTROLYTIC IRON

The effect of stress on the magnetization of high purity iron has been studied systematically at different locations on the M,H plane corres ponding to a variety of magnetic states of the material. The results c onfirm earlier studies that show the sign of the derivative dM/sigma c hanges at different locations on the M,H plane, and can even change as a result of a monotonic increase of stress either in compression or t ension. The observed behavior can be explained on the basis of a recen t theory which predicts that the irreversible changes in magnetization resulting from changes in applied stress cause the magnetization to a pproach the anhysteretic magnetization curve at the given applied fiel d strength. (C) 1996 American Institute of Physics.