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

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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)

Edited by:

S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara

Pages:

425-430

Citation:

H. Yoshida et al., "Effect of Niobium Addition on the Texture Formation of High Strength Cold-Rolled Low Carbon Steel Sheets", Materials Science Forum, Vols. 558-559, pp. 425-430, 2007

Online since:

October 2007

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$38.00

[1] R.L. Whiteley and D.E. Wise, in: Flat rolled products Ⅲ , Interscience, New York (1962), p.47.

[2] K. Osawa, T. Suzuki, K. Matsudo and K. Kurihara: Tetsu-to-Hagane, Vol. 72 (1986), p.1728.

[3] I. Tsukatani, T. Inoue, M. Sudo: Tetsu-to-Hagane, Vol. 79 (1986), p.71.

[4] Y. Hosoya, T. Urabe, K. Tahara, S. Kaneto and H. Ando: NKK Technical Report: No. 145 (1994), p.17.

[5] K. Seto, K. Okuda, K. Sakata: Kawasaki Steel Technical Report, Vol. 27 (1995), p.156.

[6] K. Matsudo and T. Shimomura: Tetsu-to-Hagane, Vol. 55 (1969), S536.

[7] W.B. Hutchinson, K-I. Nilsson and J. Hirsch: Metallurgy of Vacuum-Degassed Steel Products, TMS (1990), p.109.

[8] T. Urabe and J.J. Jonas: ISIJ Int., Vol. 34 (1994), p.435.

[9] M.G. Abken, I. Weiss and J.J. Jonas: Acta Metall., (1981), p.111.

[10] H. Inagaki: J. Japan Inst. Metals, Vol. 50 (1986), p.250.

[11] F. Kitano, T. Urabe, T. Fujita, K. Nakajima and Y. Hosoya: ISIJ Int., Vol. 41 (2001), p.1402.

[12] K. Matsudo, K. Osawa and H. Kobayashi: Tetsu-to-Hagane, Vol. 63 (1977), p.62.

[13] A. Okamoto: Tetsu-to-Hagane, Vol. 70 (1984), p.116.

[14] I.L. Dillamore and H. Katoh: Materials Sci., Vol. 8 (1974), p.21.

[15] J.F. Held, in: Mechanical working and steel processing Ⅳ, paper 3, The Metallurgical Society of AINE, New York (1965).