An Investigation on Boron-Treated Steels (8th Report). On the Effects of Boron-Addition to the Magnetic Properties of “Fe-Mn” Magnet-Steel (I)

Abstract

The addition of very small amount of boron as little as 0.003% to magnet steel containing 13∼15% of maganese improves the maximum energy product of the steel to about 500 from 400×10³ gauss-oersted, while the coercive force or the residual induction were scarcely improved. The added amount of boron to the order of 0.05% is not desirable, because it raised the austenitizing temperature for dissolving the boride and did not improve it so much as compared with the cases of boron added by 0.03%.