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Directional recrystallization and microstructures of an Fe-6.5wt%Si alloy

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Abstract

Directional recrystallization of an Fe-6.5wt%Si alloy was investigated by changing hot zone temperatures and growth rates. Elongated (columnar) grains with an aspect ratio more than 10 can be produced when growth parameters are carefully adjusted. It was found that at a fixed growth rate, the grain length and aspect ratio increase with increased hot zone temperatures. At a fixed hot zone temperature, there is a critical growth rate at which columnar grains have the largest average aspect ratio. Below or above this growth rate, the aspect ratio decreases. Texture and grain orientation analysis showed that the preferentially selective growth to form columnar grains was favored by the formation of low-energy surfaces and grain boundaries.

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References

  1. R.L. Cairns, L.R. Curwick, and J.S. Benjamin: Grain growth in dispersion strengthened superalloys by moving zone heat treatments. Metall. Trans. A 6, 179 (1975).

    Article  CAS  Google Scholar 

  2. D.N. Duhl and E.R. Thompson: Directional structures for advanced aircraft turbine blades. J. Aircraft 14, 521 (1977).

    Article  Google Scholar 

  3. M.M. Baloch and H.K.D.H. Bhadeshia: Directional recrystallization in Inconel MA 6000 nickel base oxide dispersion strengthened superalloy. Mater. Sci. Technol. 6, 1236 (1990).

    Article  CAS  Google Scholar 

  4. J.M. Marsh and J.W. Martin: Micromechanisms of texture development during zone annealing of MA 6000 extrusions. Mater. Sci. Technol. 7, 183 (1991).

    Article  CAS  Google Scholar 

  5. A.O. Humphreys, S.W.K. Shaw, and J.W. Martin: Effect of process variables on the structure of directionally recrystallized MA-6000. Mater. Charact. 34, 9 (1995).

    Article  CAS  Google Scholar 

  6. M.S. Greaves, P.S. Bate, W.T. Roberts, and S.W.K. Shaw: Directional recrystallization in nickel based high temperature alloy. Mater. Sci. Technol. 12, 730 (1996).

    Article  CAS  Google Scholar 

  7. T.S. Chou and H.K.D.H. Bhadeshia: Recrystallization temperatures in mechanically alloyed oxide-dispersion-strengthened MA956 and MA957 steels. Mater. Sci. Eng., A 189, 229 (1994).

    Article  Google Scholar 

  8. H.K.D.H. Bhadeshia: Recrystallization of practical mechanically alloyed iron-base and nickel-base superalloys. Mater. Sci. Eng., A 223, 64 (1997).

    Article  Google Scholar 

  9. I. Baker, B. Iliescu, J. Li, and H.J. Frost: Experiments and simulations of directionally annealed ODS MA 754. Mater. Sci. Eng., A 492, 353 (2008).

    Article  Google Scholar 

  10. I. Baker and J. Li: Directional annealing of cold-rolled copper single crystals. Acta Mater. 50, 805 (2002).

    Article  CAS  Google Scholar 

  11. J. Li, S.L. Johns, B.M. Iliescu, H.J. Frost, and I. Baker: The effect of hot zone velocity and temperature gradient on the directional recrystallization of polycrystalline nickel. Acta Mater. 50, 4491 (2002).

    Article  CAS  Google Scholar 

  12. J. Li and I. Baker: An EBSP study of directionally recrystallized cold-rolled nickel. Mater. Sci. Eng., A 392, 8 (2005).

    Article  Google Scholar 

  13. Z.W. Zhang, G.L. Chen, and G. Chen: The effect of drawing velocity and phase transformation on the structure of directionally annealed iron. Mater. Sci. Eng., A 434, 58 (2006).

    Article  Google Scholar 

  14. Z.W. Zhang, G.L. Chen, and G. Chen: Microstructural evolution of commercial pure iron during directional annealing. Mater. Sci. Eng., A 422, 241 (2006).

    Article  Google Scholar 

  15. Z.W. Zhang, G.L. Chen, and G. Chen: The effect of crystallographic texture on columnar grain growth in commercial pure iron during directional annealing. Mater. Sci. Eng., A 435–436, 573 (2006).

    Article  Google Scholar 

  16. Z.W. Zhang, G.L. Chen, and G. Chen: Dynamics and mechanism of columnar grain growth of pure iron under directional annealing. Acta Mater. 55, 5988 (2007).

    Article  CAS  Google Scholar 

  17. T. Hirano, T. Mawari, M. Demura, and Y. Isoda: Effect of direc-tional growth-rate on the mechanical properties of Ni3Al.Mater. Sci. Eng., A 239–240, 324 (1997).

    Article  Google Scholar 

  18. T. Tsujimoto, T. Matsui, T. Suzuki, Y. Tomota, K. Shibue, and T. Furuyama: Evolution of high aspect ratio grains in a TiAl-based alloy by directional grain growth. Intermetallics 9, 97 (2001).

    Article  CAS  Google Scholar 

  19. Z.W. Zhang, G. Chen, H. Bei, F. Ye, G.L. Chen, and C.T. Liu: Improvement of magnetic properties of an Fe–6.5 wt% Si alloy by directional recrystallization. Appl. Phys. Lett. 93, 191908 (2008).

    Article  Google Scholar 

  20. K.N. Kim, L.M. Pan, J.P. Lin, Y.L. Wang, Z. Lin, and G.L. Chen: The effect of boron content on the processing for Fe–6.5 wt% Si electrical steel sheets. J. Magn. Magn. Mater. 277, 331 (2004).

    Article  CAS  Google Scholar 

  21. S. Ranganathan: On the geometry of coincidence-site lattices. Acta Crystallogr. 21, 197 (1966).

    Article  CAS  Google Scholar 

  22. E.A Holm, N. Zacharoroulos, and D.J. Srolovitz: Nonuniform and directional grain growth caused by grain boundary mobility variations. Acta Mater. 46, 953 (1998).

    Article  CAS  Google Scholar 

  23. K.I. Arai, H. Tsutsumitake, and K. Ohmori: Grain growth of rapid quenching high silicon-iron alloys. IEEE Trans. Magn. 20, p1463 (1984).

  24. K.I. Arai and K. Ohmori: Grain growth characteristics and magnetic properties of rapidly quenched silicon steel ribbouns. Metall. Trans. A 17, 1295 (1986).

    Article  Google Scholar 

  25. T. Watanabe, H. Fujii, H. Oikawa, and K.I. Arai: Grain boundaries in rapidly solidified and annealed Fe–6.5mass%Si polycrys-talline ribbons with high ductility. Acta Metall. 37, 941 (1989).

    Article  CAS  Google Scholar 

  26. T. Watanabe: The importance of grain boundary character distribution (GBCD) to recrystallization, grain growth and texture. Scr. Metall. 27, 1479 (1992).

    Google Scholar 

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Authors and Affiliations

  1. Engineering Research Center of Materials Behavior and Design, Ministry of Education, Nanjing University of Science and Technology, Nanjing, 210094, People’s Republic of China

    Zhongwu Zhang, Guang Chen, Feng Li & Guoliang Chen

  2. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA

    Guang Chen, Hongbin Bei & Chain-Tsuan Liu

  3. State Key Laboratory for Advanced Metals and Materials, University of Science & Technology Beijing (USTB), Beijing, 100083, People’s Republic of China

    Feng Ye & Guoliang Chen

  4. Mechanical Engineering Department, Hong Kong Polytechnic University, Hong Kong, China

    Chain-Tsuan Liu

Authors
  1. Zhongwu Zhang
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  2. Guang Chen
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  3. Hongbin Bei
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  4. Feng Li
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  5. Feng Ye
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  6. Guoliang Chen
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  7. Chain-Tsuan Liu
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Correspondence to Guang Chen.

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Zhang, Z., Chen, G., Bei, H. et al. Directional recrystallization and microstructures of an Fe-6.5wt%Si alloy. Journal of Materials Research 24, 2654–2660 (2009). https://doi.org/10.1557/jmr.2009.0303

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  • DOI: https://doi.org/10.1557/jmr.2009.0303

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