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Modeling on solute enrichment and inclusion precipitation during the solidification process of high sulfur steel slab

Published online by Cambridge University Press:  11 September 2017

Lintao Gui ,
Mujun Long ,
Dengfu Chen ,
Yunwei Huang ,
Tao Liu ,
Huabiao Chen  and
Huamei Duan
Lintao Gui
Affiliation:
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Mujun Long*
Affiliation:
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Dengfu Chen*
Affiliation:
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Yunwei Huang
Affiliation:
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Tao Liu
Affiliation:
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Huabiao Chen
Affiliation:
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Huamei Duan
Affiliation:
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
*
a) Address all correspondence to these authors. e-mail: longmujun@cqu.edu.cn
b) e-mail: chendfu@cqu.edu.cn
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Abstract

To investigate the solute transport and redistribution in the slab continuous casting processes of high sulfur steel, a three-dimensional model coupling turbulent flow, heat and solute transportation was developed. And then a thermodynamic model for MnS precipitation was established to study the MnS precipitation and distribution in strand on a macroscale and its effect on solute macrosegregation was also explored. The results showed that the temperature and solutes concentration were the main factors for the precipitation of MnS. The effect of temperature was significant when the solid fraction was greater than 0.8. Due to the precipitation of MnS, the segregation ratio of solutes Mn and S on the center line declined from 1.05–1.15 to 0.97–1.01 and from 1.2–1.45 to 1.00–1.08, respectively. And the solute concentration of Mn and S declined and distributed more uniformly in the strand, and the macrosegregation of Mn and S was also suppressed greatly.

Keywords

simulationcastingsteel
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 20 , 27 October 2017 , pp. 3854 - 3863
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Jürgen Eckert

References

REFERENCES

You, D.L., Michelic, S.K., Bernhard, C., Loder, D., and Wieser, G.: Modeling of inclusion formation during the solidification of steel. ISIJ Int. 56(10), 1770 (2016).CrossRefGoogle Scholar
Liu, Z.Z., Wei, J., and Cai, K.K.: A coupled mathematical model of microsegregation and inclusion precipitation during solidification of silicon steel. ISIJ Int. 42(9), 958 (2002).CrossRefGoogle Scholar
Kang, M.H., Lee, J.S., Koo, Y.M., Kim, S.J., and Heo, N.H.: Correlation between MnS precipitation, sulfur segregation kinetics, and hot ductility in C–Mn steel. Metall. Mater. Trans. A 45(12), 5295 (2014).CrossRefGoogle Scholar
Nastac, L. and Marsden, K.: Numerical modelling of macrosegregation and shrinkage in large diameter steel roll castings: A mould study. Int. J. Cast Met. Res. 26(6), 374 (2013).CrossRefGoogle Scholar
Li, D.Z., Chen, X.Q., Fu, P.X., Ma, X.P., Liu, H.W., Chen, Y., Cao, Y.F., Luan, Y.K., and Li, Y.Y.: Inclusion flotation-driven channel segregation in solidifying steels. Nat. Commun. 5, 5572 (2014).CrossRefGoogle ScholarPubMed
Heckl, A., Rettig, R., and Singer, R.F.: Solidification characteristics and segregation behavior of nickel-base superalloys in dependence on different rhenium and ruthenium contents. Metall. Mater. Trans. A 41(1), 202 (2010).CrossRefGoogle Scholar
Wu, Z.H., Zheng, W., Li, G.Q., Matsuura, H., and Tsukihashi, F.: Effect of inclusions’ behavior on the microstructure in Al–Ti deoxidized and magnesium-treated steel with different aluminum contents. Metall. Mater. Trans. B 46(3), 1226 (2015).CrossRefGoogle Scholar
Choudhary, S.K.: Thermodynamic evaluation of inclusion formation during cooling and solidification of low carbon Si–Mn killed steel. Mater. Manuf. Processes 27(9), 925 (2012).CrossRefGoogle Scholar
Wang, M.L., Cheng, G.G., Qiu, S.T., Zhao, P., and Gan, Y.: Roles of titanium-rich precipitates as inoculants during solidification in low carbon steel. Int. J. Miner., Metall. Mater. 17(3), 276 (2010).CrossRefGoogle Scholar
Wang, Y.N., Yang, J., and Bao, Y.P.: Characteristics of BN precipitation and growth during solidification of BN free-machining steel. Metall. Mater. Trans. B 45(6), 2269 (2014).CrossRefGoogle Scholar
Domitner, J., Wu, M.H., Kharicha, A., Ludwig, A., Kaufmann, B., Reiter, J., and Schaden, T.: Modeling the effects of strand surface bulging and mechanical softreduction on the macrosegregation formation in steel continuous casting. Metall. Mater. Trans. A 45(3), 1415 (2014).CrossRefGoogle Scholar
Liu, H.P., Xu, M.G., Qiu, S.T., and Zhang, H.: Numerical simulation of fluid flow in a round bloom mold with in-mold rotary electromagnetic stirring. Metall. Mater. Trans. B 43(6), 1657 (2012).CrossRefGoogle Scholar
Sun, H., Li, L., Cheng, X., Qiu, W., Liu, Z., and Zeng, L.: Reduction in macrosegregation on 380 × 490 mm bloom caster equipped combination M + F-EMS by optimising casting speed. Ironmaking Steelmaking 42(6), 439 (2015).CrossRefGoogle Scholar
Long, M.J. and Chen, D.F.: Study on mitigating center macro-segregation during steel continuous casting process. Steel Res. Int. 82(7), 847 (2011).CrossRefGoogle Scholar
Sun, H.B. and Zhang, J.Q.: Macrosegregation improvement by swirling flow nozzle for bloom continuous castings. Metall. Mater. Trans. B 45(3), 936 (2014).CrossRefGoogle Scholar
Li, Y., Teng, Y., Feng, X., and Yang, Y.: Effects of pulsed magnetic field on microsegregation of solute elements in a Ni-based single crystal superalloy. J. Mater. Sci. Technol. 33(1), 105 (2017).CrossRefGoogle Scholar
Liu, D.R.: Modelling of macrosegregation in steel ingot by weakly integrated micro-macroscopic model. Int. J. Cast Met. Res. 26(3), 143 (2013).CrossRefGoogle Scholar
Lei, S-L., Jiang, M., Yang, D., Wang, X-H., and Wang, W-J.: Effect of oxides on MnS precipitation in aluminum-deoxidized steel. J. Univ. Sci. Technol. Beijing 11, 008 (2013).Google Scholar
Xiang, L., Yue, E-B., Fan, D-D., Qiu, S-T., and Pei, Z.: Calculation of AIN and MnS precipitation in non-oriented electrical steel produced by CSP process. J. Iron Steel Res. Int. 15(5), 88 (2008).CrossRefGoogle Scholar
You, D., Michelic, S.K., Wieser, G., and Bernhard, C.: Modeling of manganese sulfide formation during the solidification of steel. J. Mater. Sci. 52(3), 1797 (2017).CrossRefGoogle Scholar
Ueshima, Y., Sawada, Y., Mizoguchi, S., and Kajioka, H.: Precipitation behavior of MnS during delta-gamma transformation in Fe–Si alloys. Metall. Mater. Trans. A 20(8), 1375 (1989).CrossRefGoogle Scholar
Xu, J.Y., Liu, Z.Q., Guo, G.Q., and Chen, M.: An investigation on wear mechanism of high-speed turning of free-cutting steel AISI 1215 using uncoated and multi-layer coated tools. Int. J. Adv. Manuf. Technol. 67(1), 517 (2013).CrossRefGoogle Scholar
Brent, A.D., Voller, V.R., and Reid, K.J.: Enthalpy-porosity technique for modeling convection-diffusion phase-change-application to the melting of a pure metal. Numer. Heat Transfer, Part A 13(3), 297 (1988).Google Scholar
Yang, H.L., Zhao, L.G., Zhang, X.Z., Deng, K.W., Li, W.C., and Gan, Y.: Mathematical simulation on coupled flow, heat, and solute transport in slab continuous casting process. Metall. Mater. Trans. B 29(6), 1345 (1998).CrossRefGoogle Scholar
Long, M., Dong, Z., Chen, D., Liao, Q., and Ma, Y.: Effect of uneven solidification on the quality of continuous casting slab. Int. J. Mater. Prod. Technol. 47(1/2/3/4), 216 (2013).CrossRefGoogle Scholar
Meng, Y. and Thomas, B.G.: Heat-transfer and solidification model of continuous slab casting: CON1D. Metall. Mater. Trans. B 34(5), 685 (2003).CrossRefGoogle Scholar
Ueshima, Y., Isobe, K., Mizoguchi, S., Maede, H., and Kajioka, H.: Analysis of the rate of crystallization and precipitation of MnS in a resulphurized free-cutting steel. Trans. Iron Steel Inst. Jpn. 74(3), 465 (1988).CrossRefGoogle Scholar
El-Bealy, M. and Fredriksson, H.: On the formation of a fluctuated macrosegregation phenomenon in the continuous casting process. Scand. J. Metall. 23(4), 140 (1994).Google Scholar
El-Bealy, M.: Modeling of interdendritic strain and macrosegregation for dendritic solidification processes: Part I. Theory and experiments. Metall. Mater. Trans. B 31(2), 331 (2000).CrossRefGoogle Scholar
Sun, H.B. and Zhang, J.Q.: Study on the macrosegregation behavior for the bloom continuous casting: Model development and validation. Metall. Mater. Trans. B 45(3), 1133 (2014).CrossRefGoogle Scholar
Sun, H. and Li, L.: Formation and control of macrosegregation for round bloom continuous casting. Ironmaking Steelmaking 42(9), 683 (2015).CrossRefGoogle Scholar