TY - JOUR
T1 - EBSD analysis of magnesium addition on inclusion formation in SS400 structural steel
AU - Luo, Sin Jie
AU - Su, Yen Hao Frank
AU - Lu, Muh Jung
AU - Kuo, Jui Chao
N1 - Funding Information:
The authors would like to express their gratitude to China Steel Corporation and the National Science Council (NSC) for the financial support of this project ( NSC 100-2628-E-006-024-MY3 ).
PY - 2013
Y1 - 2013
N2 - In this study, the effect of magnesium addition on the inclusion formation in SS400 steel was investigated. The experimental specimens with and without Mg addition treatment were compared. The microstructure was observed using optical microscopy after etching with 3% nital. The morphology and chemical composition of the inclusions were analyzed via scanning electron microscopy and energy dispersive spectrometry. The lattice structure and orientation of the inclusions were identified by electron backscattering diffraction. The average size of inclusions in SS400 was between 0.67 and 0.75 μm, and between 0.65 and 0.68 μm in SS400 + Mg. The 2 ppm Mg addition resulted in the oxide formation change from Al2O3 to MgO·Al2O 3 and in the inclusion formation change from Al2O 3-MnS to MgO·Al2O3-MnS. Moreover, a simple-phase MnS with an average grain size of 1 μm to 2 μm was observed in rod-like, globular, and polyhedron forms.
AB - In this study, the effect of magnesium addition on the inclusion formation in SS400 steel was investigated. The experimental specimens with and without Mg addition treatment were compared. The microstructure was observed using optical microscopy after etching with 3% nital. The morphology and chemical composition of the inclusions were analyzed via scanning electron microscopy and energy dispersive spectrometry. The lattice structure and orientation of the inclusions were identified by electron backscattering diffraction. The average size of inclusions in SS400 was between 0.67 and 0.75 μm, and between 0.65 and 0.68 μm in SS400 + Mg. The 2 ppm Mg addition resulted in the oxide formation change from Al2O3 to MgO·Al2O 3 and in the inclusion formation change from Al2O 3-MnS to MgO·Al2O3-MnS. Moreover, a simple-phase MnS with an average grain size of 1 μm to 2 μm was observed in rod-like, globular, and polyhedron forms.
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U2 - 10.1016/j.matchar.2013.05.013
DO - 10.1016/j.matchar.2013.05.013
M3 - Article
AN - SCOPUS:84879114608
SN - 1044-5803
VL - 82
SP - 103
EP - 112
JO - Materials Characterization
JF - Materials Characterization
ER -