High Temperature Materials and Processes · 2017 · 13 citations · 4 references
EngineeringMaterials EngineeringMaterials ScienceMaterials ProcessingMetallurgySolidificationAlloysCastingCasting SolidificationColumnar-to-equiaxed TransitionGrain GrowthSegregation During SolidificationColumnar TransitionDendrite Arm FragmentationDendrite Arm SpacingDendrite FragmentationDendrite GrowthEquiaxed TransitionSecondary Dendrite Arm SpacingSegregation
Abstract The effects of rotational electromagnetic stirring (R-EMS) on dendrite growth characteristics and segregation control of bearing steel billet were investigated in continuous casting. The results show that applying R-EMS can promote columnar-equiaxed transition, increase the region of the equiaxed grain from 5 % to 45 %, decrease the secondary dendrite arm spacing (SDAS), and reduce the segregation of both carbon and sulfur. Meanwhile, the fragments of dendrite arms induced by R-EMS are observed. The length of the dendrite fragmentation is approximately 1.5 mm, 7–10 times the SDAS. Some fragments can partially remelt to become effective nuclei, and some fragments survive the solidification process.
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Zibing Hou, Fang Jiang, Guoguang Cheng · ISIJ International · 2012 · 60 citations · Full text
Engineering, Manufacturing Engineering, Materials Engineering +17
Chao Xiao, Jiongming Zhang, Yanzhao Luo et al. · Journal of Iron and Steel Research International · 2013 · 35 citations