MAGNETIC PROPERTIES OF PLASTICALLY DEFORMED IRON SINGLE CRYSTALS.

Iron single crystals were elongated along the left bracket 001 right bracket and left bracket 011 right bracket axes at temperatures of minus 78, minus 50, 22 and 200 degree C, and their magnetization curves were measured using picture frame specimens. The left bracket 011 right bracket crystal elongated at 22 and 200 degree C showed a large increase in coercive force H//c, and the left bracket 001 right bracket crystal elongated at minus 50 degree C showed a small increase in H//c in spite of considerable work-hardening. It is concluded that the main origin of the increase in H//c is not dislocation densities, but the local crystal misorientation between neighboring cells which develops with the increase of deformation.