J. Phys. IV France
Volume 08, Numéro PR2, June 1998
Soft Magnetic Materials 13
Page(s) Pr2-519 - Pr2-522
Soft Magnetic Materials 13

J. Phys. IV France 08 (1998) Pr2-519-Pr2-522

DOI: 10.1051/jp4:19982120

Effects of sulfur on the primary and secondary recrystallization in 3% Si-Fe grain oriented electrical steels

B.D. Hong and J.S. Woo

Coating Technology and Electrical Steel Research Team, POSCO Technical Research Laboratories, Pohang, P.O. Box 36, 1 Khoedong-dong Nam-ku, Pohang 790-385, Korea

In this study, where AIN particles for grain growth inhibition were formed during the heating stage of secondary recrystallization annealing by nitriding from N2-rich atmosphere, the effect of sulfur on the primary and secondary recrystallization in 3%Si-Fe was investigated. As the sulfur content decreases, the size of primary grains increases and the distribution of AIN precipitates becomes more uniform and finer. as a results, the secondary recrystallization is formed at higher temperature. Because of the increase in the secondary recrystallization temperature, the specimen with less sulfur shows better magnetic properties.

© EDP Sciences 1998