Skip to main content
SpringerLink
Log in

Effects of Fluorine and BaO on the Crystallization Behavior of Lime–Alumina-Based Mold Flux for Casting High-Al Steels

  • Published:
Metallurgical and Materials Transactions B Aims and scope Submit manuscript

Abstract

With the development of advanced high-strength steel, the slag/steel reaction problems introduced by the addition of aluminum into steel become a challenge for the continuous casting process. An investigation aims to improve the crystallization property of lime–alumina-based mold flux for casting high Al-bearing steels which was carried out through the study of effects of fluorine and BaO on the crystallization behaviors of the mold flux. The single/double hot thermocouple technique and SEM, EDS were employed in the study. The results indicated that the decrease of fluorine content would promote the crystallization behaviors in the lime–alumina-based system which is different to that in the conventional lime–silica-based system, while BaO substituted for CaO can inhibit the crystallization of the lime–alumina-based mold flux. Moreover, the crystallization behavior of mold flux under simulated thermal gradient was in well accordance with TTT results, including the crystallization process and three-layered (liquid, crystalline, glassy) distribution of mold flux.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

  1. W. Wang, K. Blazek, A. Cramb: Metall. Mater. Trans. B, 2008, vol. 39, pp. 66-74.

    Article  Google Scholar 

  2. J.B. Jeffrey, A.M. Maureen, and T.N. Thinium: AISTech Proc, 2005, vol. 11, pp. 99–106.

  3. K. Blazek, H. Yin, G. Skoczylas, M. McClymonds, and M. Frazee: Iron Steel Technol., 2011, vol. 8(3): pp. 231-240.

    Google Scholar 

  4. M. S. Kim, S. W. Lee, J. W. Cho, M. S. Park, H. G. Lee, Y. B. Kang: Metall. Mater. Trans. B, 2013, vol. 44B, pp: 299-308.

    Article  Google Scholar 

  5. J. W. Cho, K. Blazek, M. Frazee and H. Yin (2013) ISIJ Int., vol. 53(1), pp. 62-70.

    Article  Google Scholar 

  6. T. Omoto, H. Ogata and J. Itoh: Shinagawa Tech. Rep., 2006, vol.49, p.73.

    Google Scholar 

  7. J. Liao, Y. Zhang, S. Sridhar, X. Wang and Z. Zhang: ISIJ Int., 2012, vol. 52, p.753.

    Article  Google Scholar 

  8. H. Kim and I. Sohn: ISIJ Int., 2011, vol. 51, p.1.

    Article  Google Scholar 

  9. H. S. Park, H. Kim and I. Sohn: Metall. Mater. Trans. B, 2011, vol. 42B, p.324.

    Article  Google Scholar 

  10. W. Wang, K. Blazek and A. Cramb: Metall. Mater. Trans. B, 2008, vol. 39B, p.66.

    Article  Google Scholar 

  11. S. Stuart, J. Keegan, M. Nicole: Iron & Steel technology, 2008, vol. 5(7), pp.38-49.

    Google Scholar 

  12. T. Watanabe, H. Fukuyama and K. Nagata (2002) ISIJ Int., vol. 42(5): 489.

    Article  Google Scholar 

  13. A. B. Fox, K. C. Mills, D. Lever, C. Bezerra, C. Valadares, I. Unamuno, J. J. Laraudogoitia and J. Gisby (2005) ISIJ Int. 45(7): 1051.

    Article  Google Scholar 

  14. Y. Wang, F. Dong, B. Wang: Special steel, 2007, vol. 28(2), pp.22-23.

    Google Scholar 

  15. X. Yu: Ph.D. Dissertation, Chongqing University, Chongqing, China, 2011.

  16. L. Zhou, W. Wang, D. Huang, J. Wei, and J. Li: Metall. Mater. Trans. B, 2012, vol. 43B, p.925-936.

    Article  Google Scholar 

  17. B. Lu, K. Chen, W. Wang and B. Jiang: Metall. Mater. Trans. B, 2014, DOI:10.1007/s11663-014-0063-6.

    Google Scholar 

  18. Y. Kashiwaya, C. E. Cicutti and A. W. Cramb: ISIJ Int., 1998, vol. 38 (4), pp. 357-65.

    Article  Google Scholar 

  19. K. Prapakorn. Ph.D. Dissertation, Carnegie Mellon University, Pittsburgh Pennsylvania, 2003.

  20. V. D. Eisenhüttenleute. Slag Atlas. 2nd Ed. Düsseldorf: Verlag Stahleisen GmbH, 1995.

    Google Scholar 

  21. C. B. Shi, M. D. Seo, J. W. Cho and S. H. Kim. Metall. Mater. Trans. B, 2014, vol. 45B, p.1081-1097.

    Article  Google Scholar 

  22. Q. Wang: Ph. D. Dissertation, Central Iron and Steel Research Institute, Beijing, China, 2012.

Download references

Acknowledgments

The financial support from NSFC (51274244, 51322405) and Hunan Excellent Young Scholar Funding (14JJ1005) is greatly acknowledged.

Author information

Authors and Affiliations

  1. School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China

    Boxun Lu (Graduate Student) & Wanlin Wang (Professor)

Authors
  1. Boxun Lu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Wanlin Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Wanlin Wang.

Additional information

Manuscript submitted July 27, 2014.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Lu, B., Wang, W. Effects of Fluorine and BaO on the Crystallization Behavior of Lime–Alumina-Based Mold Flux for Casting High-Al Steels. Metall Mater Trans B 46, 852–862 (2015). https://doi.org/10.1007/s11663-014-0285-7

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11663-014-0285-7

Keywords

Search

Navigation