典型文献
Application of heat absorption method to reduce macrosegregation during solidification of bearing steel ingot
文献摘要：
The control of macrosegregation is still a difficult problem for the production of large steel ingots.In order to develop new techniques for producing low-macrosegregation and high-quality steel ingots,the effect of the heat absorption method(HAM)used by the inorganic material rods to cool the liquid steel on the formation of macrosegregation during solidi-fication of a 5-t GCr15SiMn bearing steel ingot was studied using experiment and mathematical simulation.The inorganic material was a mixture of CaF2 and CaO.The levels of macrosegregation in the longitudinal sections of two ingots with and without HAM were compared.Experimental results showed that the application of HAM reduced the positive segregation in the upper part of the ingot and the negative segregation in the lower part.The levels of carbon segregation along the longitudinal centerline and horizontal direction at different heights were all alleviated and the fluctuation of carbon segregation was significantly reduced.The simulation results confirmed that the melting and floating of the inorganic material could carry the sensible heat to the top of the liquid steel quickly.This leads to the acceleration of the cooling rate of the liquid steel,thereby alleviating the level of macrosegregation.
文献关键词：
中图分类号：
作者姓名：
Sheng Yu;Long-qiang Zhu;Jin-hu Lai;Ming-xu Pan;Yue-yun Liu;Wei-dong Xuan;Jiang Wang;Chuan-jun Li;Zhong-ming Ren
作者机构：
State Key Laboratory of Advanced Special Steel and Shanghai Key Laboratory of Advanced Ferrometallurgy and School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China;Daye Special Steel Co.,Ltd.,Huangshi 435001,Hubei,China
文献出处：
引用格式：
[1]Sheng Yu;Long-qiang Zhu;Jin-hu Lai;Ming-xu Pan;Yue-yun Liu;Wei-dong Xuan;Jiang Wang;Chuan-jun Li;Zhong-ming Ren-.Application of heat absorption method to reduce macrosegregation during solidification of bearing steel ingot)[J].钢铁研究学报（英文版）,2022(12):1915-1926
A类：
macrosegregation,solidi
B类：
Application,heat,absorption,method,during,solidification,bearing,steel,control,still,difficult,problem,production,large,ingots,In,order,develop,new,techniques,producing,high,quality,effect,HAM,used,inorganic,material,rods,liquid,formation,GCr15SiMn,was,studied,using,experiment,mathematical,simulation,mixture,CaF2,CaO,levels,longitudinal,sections,two,without,were,compared,Experimental,results,showed,that,application,reduced,positive,upper,part,negative,lower,carbon,along,centerline,horizontal,direction,different,heights,alleviated,fluctuation,significantly,confirmed,melting,floating,could,carry,sensible,top,quickly,This,leads,acceleration,cooling,rate,thereby,alleviating
AB值：
0.462721
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