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铸锭凝固过程中的对流及液相区成分变化的模拟实验研究

介万奇 , 周尧和

金属学报

采用凝固过程和对流条件与碳钢相似的NH_4Cl水溶液模拟实验,研究了铸锭凝固过程中的对流及液相区的成分变化。染色液示踪的结果表明,dρ_L/dT_L>0的溶液凝固过程中,侧向凝固的两相区中液相向上流动,并自上部流入液相区后,浮在液相区的上部形成一个弱对流区(第Ⅲ对流区)。随着来自两相区液相的不...

关键词: 液相区 , mushy zone , convection , constitution variation

MODELING STUDY OF CONVECTION AND CONSTITUTION VARIATION IN INGOT DURING SOLIDIFICATION

JIE Wanqi ZHOU Yaohe Northwestern Polytechnical University , Xi'an , China JIE Wanqi Department of Materials Science and Technology , Northwestern Polytechnical University , Xi'an , China

金属学报(英文版)

Convection and constitution variation of liquid metal during solidification has been studied us- ing NH_4Cl aqueous solution.The liquid in mushy zone attached to the side wall of the mold will flow upward and form a low concentration region,in which no significant convection oc- curs,on the top of l...

关键词: liquid zone , null , null , null

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