摘要
通道偏析起源于凝固过程中的糊状区，并以富集溶质呈Ａ或Ｖ形分布于凝固锭中。关于通道偏析形成的研究已有半个多世纪，但只是近２０年来，在其形成机理方面才取得相当大的进展。形成Ａ、Ｖ偏析的前提条件是凝固合金糊状区中的富集溶质的液相沿枝晶间隙流动。
hannel segregations originates in the mushy zone during the solidification process and distributed as solute-rich lines in the finally solidified ingots in the form of patterns“A”and'V”.Research on the formation of channel segregation has been conducted for a half century but considerable progress has been made only in the recent two decades in more clearly elucidating the re- sponsible mechanisms. The cause for occurrence of A and V-segregation is identified as the flow of solute-enriched liquid along interdendritic channels in the mushy zone of solidifying alloy.
出处
《钢铁研究》
CAS
1995年第4期45-51,共7页
Research on Iron and Steel
关键词
通道偏析
流动
钢锭
流动
枝晶间隙
富集溶质
Channel Segregation A-segregation V-segregation Interdendritic Fluid Flow Ingot
