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曹志强 , 张丽萍 , 任忠鸣 , 金俊泽
金属学报
研究了电磁搅拌对Fe—C合金宏观偏析的影响。结果表明,在强烈搅拌下,大块石墨富集试样外表面,在试样的纵向和径向存在明显的宏观偏析。界面前附加环流的存在是径向偏析产生的原因。此外,生长速度对宏观偏析也产生影响。
关键词: 电磁搅拌 , unidirectional solidification , Fe-C separated eutectic , segregation
CAO Zhiqiang ZHANG Liping REN Zhongming JIN Junze Dalian University of Technology , Dalian , China
金属学报(英文版)
Enrichment of massive graphite on lateral surface and evident macrosegregation along both longitudinal and axial directions were found by the influence of intense electromag- netic stirring during unidirectionally solidifying grey cast iron ingot.A secondary flow within the region near solidliquid interface seems to be the cause of axial segregation, and the solidification rate may also be influential in the macrosegregation.
关键词: electromagnetic stirring , null , null , null , null
