Optimal Bulk Content of Sulfur for High Magnetic Induction in Inhibitor-Free 3% Si-Fe Strips

• Published in: IEEE transactions on magnetics Vol. 44; no. 11; pp. 3809 - 3811
• Main Authors: Sang-Beom Kim, Soh, J.-Y., Heo, N.H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.11.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Annealing; Applied sciences; Atmosphere; Chemicals; Corrosion; Corrosion prevention; Cross-disciplinary physics: materials science; rheology; Digital alloys; Exact sciences and technology; Heat treatment; Iron; Magnetism; Materials science; Metals. Metallurgy; Other topics in materials science; Physics; Selective growth; Silicon; silicon steel; Strips; sulfur segregation; Surface cleaning; Temperature; texture; Magnetic induction; Corrosion inhibitors; Selective growth; Segregation; sulfur segregation; silicon steel; Steels; Microstructure; Corrosion protection; Texture; Magnetic properties
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2008.2001486

Effects of bulk content of sulfur on final texture and magnetic induction have been investigated in 3% silicon iron strips. Within the tested range of sulfur content from 11 to 92 ppm, too high or low sulfur contents resulted in a poor magnetic induction arising from no or a limited {110} texture. A weak {110} texture at a high sulfur content is due to the prolonged time period of {100} or {111} grain growth. Despite the shortened time period of selective growth of {100} or {111} grains, also the weak {110} texture at a low sulfur content is probably attributed to a weak grain boundary pinning effect of the weakly segregated sulfur. A moderate sulfur content provides an appropriate pinning effect enough to suppress {100} or {111} selective growth, finally resulting in a sharp {110} texture.