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Effect of Niobium Addition on the Texture Formation of High Strength Cold-Rolled Low Carbon Steel Sheets

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Abstract:

The effect of niobium (Nb) addition on recrystallization texture formation in cold-rolled low carbon steel sheets containing 2% manganese (Mn) was investigated. The microstructures of hot-bands were significantly refined by Nb addition, which led to the development of the cold-rolling texture in both the γ-fiber (<111>//ND-fiber) and the α-fiber (<110>//RD-fiber). Recrystallization was retarded by Nb addition, in particular, the growth of <110>//ND grains was retarded. However, the γ-fiber and {112}<110> grains developed during annealing even in the intercritical (α-γ) region. Consequently, the r-value increased as the content of Nb was increased due to the development of the intensity ratio of the <111>//ND texture to the <100>//ND texture, which is desirable for deep-drawable high strength steel sheets.

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Periodical:

Materials Science Forum (Volumes 558-559)

Pages:

425-430

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.558-559.425

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Online since:

October 2007

Authors:

Hiromi Yoshida, Kaneharu Okuda, Hidetaka Kawabe, Toshiaki Urabe, Yasushi Tanaka, Yoshihiro Hosoya

Keywords:

Low Carbon Steel, Niobium, Recrystallization, Texture, Transformation

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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