典型文献
Influence of cerium treatment on inclusion modification and as-cast microstructure of high-strength low-alloy steel
文献摘要：
The influence of cerium treatment on the inclusion evolution and as-cast microstructure of high-strength low-alloy steel was investigated.Properties including the inclusions characteristics,element distribution,and the in situ solidification were analyzed by scanning electron microscopy,energy-dispersive spectroscopy,and high-temperature confocal laser scanning microscopy,respectively.The results indicated that,after the addition of Ce,the A1203 inclusions evolved to form Ce2O2S and CeAlO3 inclusions,which exhibited a decrease in size alongside corresponding increase in their number density.The equiaxed grain ratio exhibited by the as-cast microstructure increased significantly upon the addition of Ce,while a reduction in the segregation and a corresponding increase in the homogeneity of the carbon distribution within the as-cast microstructure were also achieved.The results of the in situ observation of the solidification suggested that the addition of Ce significantly reduced the solidification temperature range,thus reducing the carbon segregation.The nucleation effect imparted by A1203,Ce2O2S,and CeA103 on the δ-Fe formation was discussed in the context of the disregistry theory,which revealed that the formation of a large number of fine Ce2O2S inclusions promoted δ-Fe formation via heterogeneous nucleation.
文献关键词：
中图分类号：
作者姓名：
Ru-ming Geng;Jing Li;Cheng-bin Shi
作者机构：
State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China
文献出处：
引用格式：
[1]Ru-ming Geng;Jing Li;Cheng-bin Shi-.Influence of cerium treatment on inclusion modification and as-cast microstructure of high-strength low-alloy steel)[J].钢铁研究学报（英文版）,2022(10):1659-1668
A类：
CeA103,disregistry
B类：
Influence,cerium,treatment,modification,cast,microstructure,high,strength,low,alloy,steel,influence,evolution,was,investigated,Properties,including,inclusions,characteristics,element,distribution,situ,solidification,were,analyzed,by,scanning,electron,microscopy,energy,dispersive,spectroscopy,temperature,confocal,laser,respectively,results,indicated,that,after,addition,A1203,evolved,Ce2O2S,CeAlO3,which,exhibited,decrease,size,alongside,corresponding,their,number,density,equiaxed,grain,ratio,increased,significantly,upon,while,reduction,segregation,homogeneity,carbon,within,also,achieved,observation,suggested,reduced,range,thus,reducing,nucleation,effect,imparted,formation,discussed,context,theory,revealed,large,fine,promoted,via,heterogeneous
AB值：
0.492561
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