典型文献
Effect of titanium content on the refinement of coarse columnar austenite grains during the solidification of peritectic steel
文献摘要：
The effect of titanium content on the refinement of austenite grain size in as-cast peritectic carbon steel was investigated by fast dir-ectional solidification experiments with simulating the solidification and growth of surface and subsurface austenite in continuously cast slabs. Transmission electron microscope (TEM) and scanning electron microscope (SEM) were used to analyze the size and distribution of Ti(C,N) precipitates during solidification. Based on these results, the pinning pressure of Ti(C,N) precipitates on the growth of coarse columnar grains (CCGs) was studied. The results show that the austenite microstructure of as-cast peritectic carbon steel is mainly composed of the regions of CCGs and fine columnar grains (FCGs). Increasing the content of titanium reduces the region and the short axis of the CCGs. When the con-tent of titanium is 0.09wt％, there is no CCG region. Dispersed microscale particles will firstly form in the liquid, which will decrease the trans-ition temperature from FCGs to CCGs. The chain-like nanoscale Ti(C,N) will precipitate with the decrease of the transition temperature. Fur-thermore, calculations shows that the refinement of the CCGs is caused by the pinning effect of Ti(C,N) precipitates.
文献关键词：
中图分类号：
作者姓名：
Jiazhi An;Zhaozhen Cai;Miaoyong Zhu
作者机构：
Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Northeastern University,Shenyang 110819,China;School of Metallurgy,Northeastern University,Shenyang 110819,China
文献出处：
引用格式：
[1]Jiazhi An;Zhaozhen Cai;Miaoyong Zhu-.Effect of titanium content on the refinement of coarse columnar austenite grains during the solidification of peritectic steel)[J].矿物冶金与材料学报,2022(12):2172-2180
A类：
ectional,CCGs,FCGs,09wt
B类：
Effect,titanium,content,refinement,coarse,columnar,austenite,grains,during,solidification,peritectic,steel,effect,size,cast,carbon,was,investigated,by,fast,dir,experiments,simulating,growth,subsurface,continuously,slabs,Transmission,electron,microscope,TEM,scanning,were,analyze,distribution,Ti,precipitates,Based,these,results,pinning,pressure,studied,that,microstructure,mainly,composed,regions,Increasing,reduces,short,axis,When,there,Dispersed,microscale,particles,will,firstly,form,liquid,which,decrease,temperature,from,chain,like,nanoscale,transition,Fur,thermore,calculations,shows,caused
AB值：
0.396722
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