Effect of elastic deformation on the magnetic properties of steels having different structures

We studied the effect of elastic deformations by tension and compression on the coercive force, the relaxation magnetization, and the magnetic suscept ibility of 30KhGSA and U8 steels subjected to quenching and tempering at di fferent temperatures. The measurements were made on previously demagnetized and subsequently stressed specimen. A physical interpretation is provided for the obtained relations. The investigation also included the effect of t he order in which the magnetic field and the load were applied and removed on the nature of the residual magnetization's dependence on the tempering t emperature. We established experimentally the tempering temperature depende nce of the tension and compression stresses required for magnetization to r each its relaxation value, when the specimens were stressed in magnetic fie lds corresponding to the coercive force. It was shown that the stresses wer e proportional to the difference between the coercive and the relaxation co ercive forces.