Effect of the interaction of lattice defects with solute atoms upon the magnetic properties of soft magnetic materials: I. Effect of strain aging on the quasistatic magnetic hysteresis loop

In the Fe-3 wt % Si alloys used as electrical-sheet steels, a quasistatic m agnetic hysteresis loop of a special type was found; the loop had an inflec tion separating it into two regions with different slopes. Such a loop is p eculiar to only a coarse-grained material with a (110)[001] texture rolled in the [001] direction and annealed at certain temperatures. The observed f eatures of the loop are caused by strain aging, upon which changes in the m agnetic phases occur that increase the difference between their magnetic ha rdnesses.