Abstract
The microstructure and texture evolution of Fe-3 %Si nonoriented silicon steel fabricated by twin-roll casting and hot rolling was investigated. Inhomogeneous microstructure and texture were formed through thickness of both as-cast and hot-rolled strips. In as-cast strip, the microstructure through thickness was characterized by coarse grains at surface layer and fine equiaxed grains at center layer. Surface layer displayed both recrystallization texture of {112} <110> and {110} <112> components and solidification texture of {100} <0vw> component. The fine equiaxed grains were sandwiched between two coarse-grain layers, which showed recrystallization texture only containing strong {112} <110> and relatively weak {100} <0vw> and {110} <112> components. After hot rolling, the surface layer exhibited fine equiaxed grains with average size of 50 μm. The major texture components of surface layer were {112} <110> and {110} <112>. Coarse elongated grains were observed at center layer with strong {100} <0vw> texture. The mechanism of microstructure and texture inhomogeneity in both as-cast and hot-rolled strips is proposed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Z.Z. He, Y. Zhao, H.W. Luo, Electrical Steels (Metallurgical Industry Press, Beijing, 2012), p. 183
H. Shimanaka, T. Irie, K. Matsumura, H. Nakamura, A new non-oriented Si-steel with texture of {100} <0vw>. J. Magn. Magn. Mater. 19(1–3), 63 (1980)
M. Miyazaki, Y. Kurosaki, T. Shimazu, K. Ohnuki, Cast slab of non-oriented electrical steel and manufacturing method thereof, US patent no. 8210231, (2012)
H.T. Liu, Z.Y. Liu, G.D. Wang, Texture development and formability of strip cast 17 % Cr ferritic stainless steel. ISIJ Int. 49(6), 890 (2009)
H.T. Liu, Z.Y. Liu, Y.Q. Qiu, G.M. Cao, C.G. Li, G.D. Wang, Characterization of solidification structure and texture development of ferritic stainless steel produced by twin-roll strip casting. Mater. Charact. 60(1), 79 (2009)
D. Raabe, Texture and microstructure evolution during cold rolling of a strip cast and a hot rolled austenite stainless steel. Acta Mater. 45(3), 1137 (1997)
A. Hunter, M. Ferry, Comparative study of texture development in strip-cast ferritic and austenitic stainless steel. Scr. Mater. 47(5), 349 (2002)
H. Takatani, C.A. Gandin, M. Rappaz, EBSD characterisation and modelling of columnar dendritic grains growth in the presence of fluid flow. Acta Mater. 48(3), 675 (2000)
H.T. Liu, Z.Y. Liu, G.M. Cao, C.G. Li, G.D. Wang, Microstructure and texture evolution of strip casting 3 wt% Si non-oriented silicon steel with columnar structure. J. Magn. Magn. Mater. 323(21), 2648 (2011)
N. Zhang, P. Yang, W.M. Mao, Influence of columnar grains on the cold rolling texture evolution in Fe-3%Si electrical steel. Acta Metall. Sin. 48(7), 782 (2012)
M.Q. Yan, H. Qian, P. Yang, H.J. Song, Y.Y. Shao, W.M. Mao, Behaviors of brass texture and its influence on Goss texture in grain oriented electrical steel. Acta Metall. Sin. 48(1), 16 (2012)
D. Stojakovic, R.D. Doherty, S.R. Kalidindi, Thermomechanical processing for recovery of desired < 001 > fiber texture in electric motor steels. Metall. Mater. Trans. A 39(7), 1738 (2008)
J.Y. Park, K.H. Oh, H.Y. Ra, Microstructure and crystallographic texture of strip-cast 4.3 % Si steel sheet. Scr. Mater. 40(8), 881 (1999)
J.Y. Park, K.H. Oh, Y.H. Ra, The effect of superheating on texture and microstructure of Fe-4.5 % Si steel strip by twin-roll strip casting. ISIJ Int. 41(1), 70 (2001)
J.Y. Park, K.H. Oh, Y.H. Ra, Texture and deformation behavior through thickness direction in strip-cast 4.5 wt% Si steel sheet. ISIJ Int. 40(12), 1210 (2000)
T. Yonamine, N.A. Castro, F.J. Landgraf, Approaching (100) <0vw> by rolling directionally solidified silicon steels. Steel Res. Int. 76(6), 461 (2005)
S.K. Chang, S.I. Lee, D.N. Lee, Change of rotated cube texture through multi-processing in 3 % Si-steels. ISIJ Int. 49(1), 105 (2009)
H.J. Fisher, J.L. Walter, Control of crystal orientation in silicon-iron ingots. Trans. Met. Soc. AIME. 224(6), 1271 (1962)
H.T. Liu, Z.Y. Liu, C.G. Li, G.M. Cao, G.D. Wang, Solidification structure and crystallographic texture of strip casting 3 wt% Si non-oriented silicon steel. Mater. Charact. 62(5), 463 (2011)
C.A. Gandin, M. Rappaz, A coupled finite element-cellular automaton model for the prediction of dendritic grain structures in solidification processes. Acta Metall. Mater. 42(7), 2233 (1994)
A.R. Büchner, J.W. Schmitz, Thin-strip casting of steel with a twin-roll caster: discussion of products defects of 1 mm Fe-6 %Si strips. Steel Res. 63(1), 7 (1992)
G.X. Hu, X. Cai, Y.H. Rong, Fundamentals of Materials Science, 2nd edn. (Shanghai Jiao Tong University Press, Shanghai, 2006), p. 204
M. Koizumi, H. Inagaki, Role of shear band in texture control of Al–Mg alloys. Metals Mater. Int. 5(6), 511 (1999)
J.T. Park, Development of annealing texture in non-oriented electrical steels [Dissertation], McGill University, Montreal, 2002, p. 69
Acknowledgments
The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (grant nos. 51004035, 51374002) and the Fundamental Research Funds for the Central Universities (grant no. N120407009).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wu, S., Chen, A., Liu, H. et al. Microstructure and Texture Evolution of Strip-Cast and Hot-Rolled Fe-3 %Si Steel Sheet. Metallogr. Microstruct. Anal. 3, 390–396 (2014). https://doi.org/10.1007/s13632-014-0145-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13632-014-0145-5