Texture Change during Grain Growth in Non-Oriented Electrical Steel

Abstract:

Texture change during grain growth in Fe-3%Si non-oriented electrical steel was investigated. Cold rolled steel, 0.35mm in thickness, was annealed and recrystallized as an initial structure. Normal grain growth and abnormal grain growth occurred by additional annealing. {111} was dominant in the initial texture. However {100} component, which was not in majority in the initial structure, became stronger after normal grain growth. It was revealed that an average grain size of {100} in the initial structure was bigger than those of other components by analysis of the EBSD data,. Therefore, it is concluded that {100} strengthened after normal grain growth due to its size advantage. On the other hand, {111} components became more stronger after abnormal grain growth. It is inferred that another mechanism of the texture change worked in abnormal grain growth.

• Periodical: Materials Science Forum (Volume 753)
• Pages: 329-332
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.753.329
• Online since: March 2013
• Authors: Yoshihiro Arita, Yoshiyuki Ushigami, Kenichi Murakami, Kohsaku Ushioda
• Keywords: Abnormal Grain Growth, Non-Oriented Electrical Steel, Normal Grain Growth, Texture

References

[1] S. Matera and A. Campopiano; Proc. The international Metallography Conference, 10-12 May, (1995)

[2] L. Chang and Y. Hwang; Materials Science and Technology July 1998 Vol.14

[3] Y. Arita and Y. Ushigami; Materials Science Forum Vols. 539-543 (2007) pp.4428-4433