Thermodynamic Calculation and MnS Solubility of Mn-Ti Oxide Formation in Si-Mn-Ti Deoxidized Steel
SCIE
SCOPUS
- Title
- Thermodynamic Calculation and MnS Solubility of Mn-Ti Oxide Formation in Si-Mn-Ti Deoxidized Steel
- Authors
- Zhuo, XJ; Wang, YQ; Wang, XH; Hae-geon, L
- Date Issued
- 2010-02
- Publisher
- JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD
- Abstract
- Mn-Ti oxides in Si-Mn-Ti deoxidized steels after cooling in the furnace were investigated. The composition and morphology of inclusions were analyzed by using FE-SEM with EDS. Mn-Ti oxides were found to be effective sites to induce intragranular ferrite formation. The thermodynamic calculation was employed to interpret the critical condition for Mn-Ti oxide formation. Mn-Ti oxide formation was controlled not only by Mn and Ti content, but also by total oxygen, content in steel. When the Mn and Ti contents were around 1.5% and 0.005% 0.01%, respectively, Mn-Ti oxide,could form as the total oxygen content was 0.001%-0.002%. The experimental results were in good agreement with thermodynamic calculation results. Also, MnS solubility. was examined in Mn-Ti oxide inclusion system: With an increase of MnO content in Mn-Ti oxide, MnS solubility in the oxides increased. MnS precipitation benefited from high MnO content in Mn-Ti oxide.
- Keywords
- Si-Mn-Ti deoxided steel; Mn-Ti oxide; MnS; intragranular ferrite; thermodynamic calculation; CARBON MICROALLOYED STEEL; INTRAGRANULAR FERRITE; ACICULAR FERRITE; NUCLEATION; PRECIPITATION; PARTICLES; SYSTEM; SOLIDIFICATION; INCLUSIONS; TOUGHNESS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25416
- DOI
- 10.1016/S1006-706X(10)60051-9
- ISSN
- 1006-706X
- Article Type
- Article
- Citation
- JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, vol. 17, no. 2, page. 10 - 16, 2010-02
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.