Preliminary communication

Study of secondary recrystallization in grain-oriented steel treated under dynamical heat treatment conditions

V. Stoyka ; Institute of Materials Research, Kosice, Slovak Republic
F. Kovac ; Institute of Materials Research, Kosice, Slovak Republic
B. Julius ; Technical University of Kosice, Kosice, Slovak Republic

Abstract

The present study was made to investigate secondary recrystallization in grain-oriented steels annealed at short time temperature exposures with application of dynamical heating. The investigated GO steels for experiments were taken from one industrial line after final cold rolling reduction and subsequent box annealing. It was shown that application of short time heat treatment conditions could lead to complete abnormal grain growth in the investigated GO steel. The texture and microstructure obtained in the laboratory treated material is similar to that observed in the same GO steel taken after industrial final box-annealing. However, some “parasitic” grains were observed in the secondary recrystallized matrix of the laboratory treated GO steel. These “parasitic” grains possess the unwanted from magnetic properties point of view {111} orientation components.

Keywords

abnormal grain growth; Goss texture; grain oriented electrical steel; coercive force

Hrčak ID:

31996

URI

https://hrcak.srce.hr/31996

Publication date:

1.4.2009.

Article data in other languages: croatian

Visits: 1.834 *