Inclusions properties at 1673 K and room temperature with Ce addition in SS400 steel

被引：15
|
作者：
Pan, Fei [1 ,2 ,3 ]
Chen, Hao-Long [4 ]
Su, Yen-Hsun [1 ]
Su, Yen-Hao [5 ]
Hwang, Weng-Sing [1 ]
机构：
[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan
[2] Tech Univ Munich, Phys Dept, D-85748 Munich, Germany
[3] Ludwig Maximilians Univ Munchen, Phys Dept, D-80799 Munich, Germany
[4] Kao Yuan Univ, Dept Elect Engn, Kaohsiung 82151, Taiwan
[5] China Steel Corp, Steelmaking Proc Dev Sect, Kaohsiung 81233, Taiwan
来源：
SCIENTIFIC REPORTS | 2017年 / 7卷
关键词：
NONMETALLIC INCLUSION; FERRITE; EVOLUTION; CERIUM; LAYER; MICROSTRUCTURE; THERMODYNAMICS; PERFORMANCE;
D O I：
10.1038/s41598-017-02478-6
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Inclusion species formed in SS400 steel with Ce-addition was predicted by thermodynamic calculation. The analysis of the inclusion morphology and size distribution was carried out by applying Scanning Electron Microscopy (SEM) and Transmission Electron Microscope (TEM). Nano-Fe3O4 particles were also found in cerium-deoxidized and -desulfurized steel and their shapes were nearly spherical. The complex Ce2O3 inclusions covering a layer of 218 nm composed by several MnS particles with similar diffraction pattern. Most importantly, the complex Ce2O3 characterized by using TEM diffraction is amorphous in the steel, indicating that Ce2O3 formed in the liquid iron and then MnS segregated cling to it.
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页数：8
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