Investigation of the solute transportation coupled with heat transfer and fluid flow during twin-roll strip casting process

doi:10.1016/S1006-7191(08)60108-8

Acta Metallurgica Sinica (English Letters) ›› 2009, Vol. 22 ›› Issue (5): 345-352.DOI: 10.1016/S1006-7191(08)60108-8

• Research paper • Previous Articles Next Articles

Investigation of the solute transportation coupled with heat transfer and fluid flow during twin-roll strip casting process

Yongsheng WANG^1,3, Chenxi JI², Jiongming ZHANG¹, Xinhua WANG¹,Wanjun WANG¹

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
2. Shougang Group, Beijing 100043, China
3. Jiuquan Iron & Steel (Group)Co., Ltd., Jiayuguan 735100, China

Received:2008-10-21 Revised:2008-11-11 Online:2009-10-25 Published:2009-10-15
Contact: Yongsheng WANG

Abstract

Abstract:

Mathematical model of solute [C] distribution in twin-roll strip casting process has been setup successfully with Calcosoft for the first time. Simulation result shows that in the center of the molten steel pool between the two rolls there is a vortex flow, which is a solute enriched area. But the highest solute concentration position is at the solidification front of the columnar grain zone near the cooling roll surface. Another solute enriched position is in the back flow above the nip point. Combined with the formation mechanism of microstructure in final as cast strip, analysis shows that solute enriched area is in the transitional area between columnar and equiaxed grain zone.

Key words: Twin-roll strip casting, Solutefield simulation, Macrosegregation

Yongsheng WANG,Chenxi JI,Jiongming ZHANG,Xinhua WANG,Wanjun WANG. Investigation of the solute transportation coupled with heat transfer and fluid flow during twin-roll strip casting process[J]. Acta Metallurgica Sinica (English Letters), 2009, 22(5): 345-352.

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Investigation of the solute transportation coupled with heat transfer and fluid flow during twin-roll strip casting process

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