A Novel Model to Design the Equilibrium Slag Compositions for Bearing Steel: Verification and Application

Wang, Yunpeng; Cheng, Guoguang; Li, Shijian; Dai, Weixing; Shang, Dajun; Lu, Chunguang

doi:10.2355/isijinternational.isijint-2020-671

Cited by 4 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The activities of slag components (Table 1) can be calculated by the Ion and Molecule Coexistence Theory (IMCT) [23,24] according to the slag chemical compositions before the VD treatment. The activities of elements i in liquid steel can be calculated by where is the activity coefficient of element i in liquid steel; is the mass fraction of element i in liquid steel, mass%; is the first-order interaction coefficient and the data used for the calculation are listed in Table 2.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Slag optimization to control CaO increase in inclusions during vacuum degassing of high carbon chromium-bearing steel

Miao

Cheng

et al. 2022

Ironmaking & Steelmaking

Self Cite

View full text Add to dashboard Cite

The impacts of slag composition on the CaO content in inclusions during vacuum degassing(VD) treatment are presented. Industrial trials and thermodynamic calculations are used to test, analyze and identify proper optimization method. After optimization, the CaO content of inclusions after VD treatment decreases from 11.3mass% to 7.4mass%. Furthermore, the quantity of CaO containing inclusions in hot-rolled bar decreases from 146 to 41 as well. It is found that the ideal kinetic conditions and the evaporation of Ca during VD process combined trigger and are expected to further enhance the reaction between Al in liquid steel and CaO in slag. Some of the Ca generated from slag will further react with the inclusions which leads to the increase of CaO content in inclusions and equivalent circle diameter of the inclusions. The mathematical correlations among the components of slag in equilibrium with that of liquid steel is obtained by thermodynamic calculations.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Mechanism Of Cao Increase In Inclusions During the Vd Treatmentmentioning

confidence: 99%

Slag optimization to control CaO increase in inclusions during vacuum degassing of high carbon chromium-bearing steel

Miao

Cheng

et al. 2022

Ironmaking & Steelmaking

Self Cite

View full text Add to dashboard Cite

show abstract

Formation and Control of Large Oxide Inclusions at the Spot-Segregation Defects of Al-Killed GCr15SiMn Ingots

Zhang

Cheng

Huang

et al. 2023

Metall Mater Trans B

View full text Add to dashboard Cite

A universal study of liquid metal cathodes for direct extraction of titanium within a closed loop

Luo

Wang

et al. 2022

Journal of Cleaner Production

View full text Add to dashboard Cite

A Novel Model to Design the Equilibrium Slag Compositions for Bearing Steel: Verification and Application

Cited by 4 publications

References 28 publications

Slag optimization to control CaO increase in inclusions during vacuum degassing of high carbon chromium-bearing steel

Slag optimization to control CaO increase in inclusions during vacuum degassing of high carbon chromium-bearing steel

Formation and Control of Large Oxide Inclusions at the Spot-Segregation Defects of Al-Killed GCr15SiMn Ingots

A universal study of liquid metal cathodes for direct extraction of titanium within a closed loop

Contact Info

Product

Resources

About