The effect of MgTiO 3 Adding on Inclusion Characteristics-Reference-Cited by-同舟云学术

The effect of MgTiO 3 Adding on Inclusion Characteristics

Published:2019-01-01 Issue:2019 Volume:38 Page:576-581
ISSN:2191-0324
Container-title:High Temperature Materials and Processes
language:en
Short-container-title:

Author:

Chen Xu¹²,Mingya Zhang¹²,Jianli Li³²,Songlin Ran¹²³,Mengwei Shan¹²,Qiang Yue¹,Hui Kong¹²

Affiliation:

1. School of Metallurgical Engineering, Anhui University of Technology , Maanshan, Anhui , 243002, P R China

2. Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education , Maanshan, Anhui , 243002 , P R China )

3. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology , Wuhan, Hubei , 430081 , P R China

Abstract

Abstract MgTiO3 powder was directly added into molten steel at 1873K, and its effect on inclusion characteristics was studied by a scanning electron microscope and an energy dispersive spectrometer. Thermodynamic calculation indicates that MgTiO3 is unstable in molten steel and may decompose into [Ti], [O] and MgO. However, only Ti-bearing inclusions were observed in the treated sample, and Mg-bearing inclusions were absent. This can be explained by the features of wettability and stability for MgO. Compared with a Non-treated sample, both oxide and coarse MnS in treated sample were refined. For the oxide, this originates from the formation of Ti-bearing inclusion. For coarse MnS, this may be due to the fact that Ti can aggravate S segregation. Besides, this aggravation makes coarse MnS less globular. After etching, it was found that in the treated sample, Ti-bearing inclusion can induce the nucleation of intragranular acicular ferrites. This appearance was totally different from that of Non-treated sample, and indicates the effectiveness of external adding method in oxide metallurgy.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference30 articles.

1. J.Takamura and S. Mizoguchi, Proceedings of the sixth international iron and steel congress, Nagoya, 1(1990) 591-597.

2. T. Koseki, and G.Thewlis, Mater. Sci. Technol., 21(2005) 867-879.10.1179/174328405X51703

3. X.L.Wan XL, R.Wei, and K.M.Wu, Mater. Charact., 61(2010) 726-731.10.1016/j.matchar.2010.04.004

4. J.-S.Byun, J.-H Shim, and Y.W Cho, Scripta Mater., 48(2003) 449-454.10.1016/S1359-6462(02)00437-2

5. N.Kikuchi, S.Nabeshima, Y.Kishimoto, T.Matsushita, and S. Sridhar, ISIJ. Int., 47(2007) 1255-1264.10.2355/isijinternational.47.1255

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