Solidification behavior of high-silicon steel based on experimental and 3D-CAFE method

SONG Wei; ZHANG Jiong-ming; WANG Shun-xi

doi:10.13374/j.issn2095-9389.2017.03.007

Volume 39 Issue 3

Mar. 2017

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2017 > 39(3): 360-368

SONG Wei, ZHANG Jiong-ming, WANG Shun-xi. Solidification behavior of high-silicon steel based on experimental and 3D-CAFE method[J]. Chinese Journal of Engineering, 2017, 39(3): 360-368. doi: 10.13374/j.issn2095-9389.2017.03.007

Citation:

SONG Wei, ZHANG Jiong-ming, WANG Shun-xi. Solidification behavior of high-silicon steel based on experimental and 3D-CAFE method[J]. Chinese Journal of Engineering, 2017, 39(3): 360-368. doi: 10.13374/j.issn2095-9389.2017.03.007

Citation:

PDF( 1462 KB)

Solidification behavior of high-silicon steel based on experimental and 3D-CAFE method

doi: 10.13374/j.issn2095-9389.2017.03.007

State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2016-05-12

Abstract

Abstract

The as-cast structure of high-silicon steel ingots under different cooling conditions was studied in this paper. It is found that the as-cast structure of the ingot is formed mainly by coarse columnar crystals, especially in the water cooling ingot, and the ratio is reaches as 90%. The dendrite tip growth kinetic coefficients and Gauss distribution parameters for 3D-CAFE simulation were determined according to the compositions of high-silicon steel and the results of as-cast structure. Then the solidification process of high-silicon steel under different cooling conditions was simulated by 3D-CAFE method. The results show that the temperature field under air cooling is more uniform, the mushy zone is broader, and it exhibits a transitional solidification pattern, however, which shows a layered solidification pattern under water cooling. The flow field under air cooling is more stable than that under water cooling, there is a remarkable suction region within the feeder head of the air cooling ingot, and this phenomenon is not observed in the water cooling one. The CAFE results including both morphology and grain size show a good agreement with the results from experiments. Moreover, the influence of superheat on the solidification structures was researched to find that the ratio and quantity of equiaxed structures increase with the decrease of the superheat, and the grain size becomes finer.
- silicon steel,
- solidification,
- temperature field,
- flow rate

FullText(HTML)

References(19)

References

[2]	Haiji H, Okada K, Hiratani T, et al. Magnetic properties and workability of 6. 5% Si steel sheet. J Magn Magn Mater, 1996, 160:109
[7]	Spittle J A, Brown S G R. Computer simulation of the effects of alloy variables on the grain structures of castings. Acta Metall, 1989, 37(7):1803
[8]	Wang S L, Sekerka R F, Wheeler A A, et al. Thermodynamically-consistent phase-field models for solidification. Phys D, 1993, 69(1-2):189
[9]	Natsume Y, Ohsasa K, Narita T. Phase-field simulation of transient liquid phase bonding process of Ni using Ni-P binary filler metal. Mater Trans, 2003, 44(5):819
[11]	Rappaz M, Gandin C A. Probabilistic modelling of microstructure formation in solidification processes. Acta Metall Mater, 1993, 41(2):345
[12]	Gandin C A, Rappaz M. A 3D cellular automaton algorithm for the prediction of dendritic grain growth. Acta Mater, 1997, 45(5):2187
[13]	Gandin C A, Desbiolles J L, Rappaz M, et al. A three-dimensional cellular automation-finite element model for the prediction of solidification grain structures. Metall Mater Trans A, 1999, 30(12):3153
[15]	Luo Y Z, Zhang J M, Wei X D, et al. Numerical simulation of solidification structure of high carbon SWRH77B billet based on the CAFE method. Ironmaking Steelmaking, 2012, 39(1):26
[16]	Jing C L, Wang X H, Jiang M. Study on solidification structure of wheel steel round billet using FE-CA coupling model. Steel Res Int, 2011, 82(10):1173
[17]	Wang J L, Wang F M, Zhao Y Y, et al. Numerical simulation of 3D-microstructures in solidification processes based on the CAFE method. Int J Miner Metall Mater, 2009, 16(6):640
[18]	Hou Z B, Jiang F, Cheng G G. Solidification structure and compactness degree of central equiaxed grain zone in continuous casting billet using cellular automaton-finite element method. ISIJ Int, 2012, 52(7):1301
[19]	Kattner U R. The thermodynamic modeling of multicomponent phase equilibria. JOM, 1997, 49(12):14
[20]	Thevoz P, Desbiolles J L, Rappaz M. Modeling of equiaxed microstructure formation in casting. Metall Trans A, 1989, 20(2):311
[21]	Kurz W, Giovanola B, Trivedi R. Theory of microstructural development during rapid solidification. Acta Metall, 1986, 34(5):823
[22]	Gandin C A, Rappaz M. A coupled finite element-cellular automaton model for the prediction of dendritic grain structures in solidification processes. Acta Metall Mater, 1994, 42(7):2233
[23]	Kovac F, Stoyka V, Petryshynets I. Strain-induced grain growth in non-oriented electrical steels. J Magn Magn Mater, 2008, 320(20):e627
[25]	Song W, Zhang J M, Liu Y, et al. Numerical simulation of solidification structure of 6. 5 wt-% Si steel ingot slab. Ironmaking Steelmaking, 2015, 42(9):656
[26]	Pickering E J. Macrosegregation in steel ingots:the applicability of modelling and characterisation techniques. ISIJ Int, 2013, 53(6):935
[27]	Patil P, Nalawade R, Balachandran G, et al. Analysis of solidification behaviour of low alloy steel ingot casting-simulation and experimental validation. Ironmaking Steelmaking, 2015, 42(7):512