Simulations of Macrosegregation with consideration of inclusion effect in solidifying carbon steels

IMR OpenIR

	Simulations of Macrosegregation with consideration of inclusion effect in solidifying carbon steels
	Cao, Y. F.; Chen, Y.; Kang, X. H.; Fu, P. X.; Liu, H. W.; Li, D. Z.; xhkang@imr.ac.cn
	2015
发表期刊	MCWASP XIV: INTERNATIONAL CONFERENCE ON MODELLING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES
ISSN	1757-8981
卷号	84 页码:-
摘要	During casting of steel ingots, the inclusions such as oxide, sulfide will inevitably exist in the melt. These inclusions will flow upward together with light solutes during solidification due to their lower density relative to the steel melt, which therefore causes impacts on the thermo-solutal convection in the melt and final solute distribution. Hence, a macrosegregation model that considers the effects of inclusions on melt flow in the mushy zone is established. Of the new model two important parameters, the inclusion capturing probability by solid, k(p), and the original volume fraction, n(0), are systematically studied in terms of simulations, which shows that decreasing kp or increasing n(0) leads to stronger ascending flow in the melt. And then as a validation example, the model was used to predict the macrosegregation in a 3.3-ton steel ingot. The prediction demonstrates that with consideration of inclusions, the melt convection strength is enhanced and thus the zones of macrosegregation are expanded comparing to simulations without taking account of inclusions. Further comparison with experiment results indicates that a better agreement of the carbon segregation along the centerline of the ingot can be achieved when considering the inclusion buoyancy.
部门归属	[cao, y. f. ; chen, y. ; kang, x. h. ; fu, p. x. ; liu, h. w. ; li, d. z.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75117
专题	中国科学院金属研究所
通讯作者	xhkang@imr.ac.cn
推荐引用方式 GB/T 7714	Cao, Y. F.,Chen, Y.,Kang, X. H.,et al. Simulations of Macrosegregation with consideration of inclusion effect in solidifying carbon steels[J]. MCWASP XIV: INTERNATIONAL CONFERENCE ON MODELLING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES,2015,84:-.
APA	Cao, Y. F..,Chen, Y..,Kang, X. H..,Fu, P. X..,Liu, H. W..,...&xhkang@imr.ac.cn.(2015).Simulations of Macrosegregation with consideration of inclusion effect in solidifying carbon steels.MCWASP XIV: INTERNATIONAL CONFERENCE ON MODELLING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES,84,-.
MLA	Cao, Y. F.,et al."Simulations of Macrosegregation with consideration of inclusion effect in solidifying carbon steels".MCWASP XIV: INTERNATIONAL CONFERENCE ON MODELLING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES 84(2015):-.