ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Separation and Quantification of AIN and Al₂0₃ Precipitates in Oriented Electrotechnical Steels

H. Bruncková and F. Kováč

Institute of Materials Research, Slovak Academy of Sciences, SK-043 53 Košice

Abstract: The precipitates in Fe-3 % Si steels have been investigated in their states after hot rolling, cold rolling, decarburization annealing, and in the final states. The secondary microphases were obtained by electrochemical and chemical methods of separation. Using chemical analysis it has been found that the precipitate fraction from hot to final stage has a decreasing character, but the content of the particle-forming elements Al, Mn, and Ti increases. The MnS particles in the final stage of Fe-3 % Si steel are approximately two times more abundant than the precipitates on the Al base. After Al separation, we have obtained more AlN isolated particles than Al₂O₃ ones.

Full paper in Portable Document Format: 514a198.pdf

Chemical Papers 51 (4) 198–201 (1997)