The role of grain boundary character distribution in secondary recrystallization of electrical steels

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Acta Materialia

DOI:https://doi.org/10.1016/S1359-6454(96)00251-0· OSTI ID:483640

Hayakawa, Y; Szpunar, J A ^[1]

---

1. McGill Univ., Montreal, Quebec (Canada). Dept. of Mining and Metallurgical Engineering

Grain Boundary Character Distributions (GBCD) in grain-oriented electrical steels were calculated from the Orientation Distribution Functions of the primary recrystallization texture. The probability of a grain boundary having a misorientation angle from 20{degree} to 45{degree} is highest around the Goss grain. The observed difference in GBCD implies that the Goss grain is surrounded by the highest number of high-energy boundaries. The high-energy boundary has more structural defects, and these are often linked to a high grain boundary migration rate and a high grain boundary diffusion rate. An explanation of Goss texture development in secondary recrystallization is proposed, based on the property of the high-energy boundary. The role of special Coincident Site Lattice boundaries is analyzed, and the authors conclude that they do not play a significant role in the development of Goss texture.

• OSTI ID: 483640
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 3 Vol. 45; ISSN 1359-6454; ISSN ACMAFD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL DEFECTS
DIFFUSION
GRAIN BOUNDARIES
GRAIN ORIENTATION
PROBABILITY
RECRYSTALLIZATION
STEELS
TEXTURE