Lei Jialiu, Li Desheng, Zhu Hangyu. Calculation Model of Optimal Basicity for the Refining Slag of Bearing Steel Based on IMCT Theory[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(2): 107-111. doi: 10.7513/j.issn.1004-7638.2019.02.018
Citation:
Lei Jialiu, Li Desheng, Zhu Hangyu. Calculation Model of Optimal Basicity for the Refining Slag of Bearing Steel Based on IMCT Theory[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(2): 107-111. doi: 10.7513/j.issn.1004-7638.2019.02.018
Lei Jialiu, Li Desheng, Zhu Hangyu. Calculation Model of Optimal Basicity for the Refining Slag of Bearing Steel Based on IMCT Theory[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(2): 107-111. doi: 10.7513/j.issn.1004-7638.2019.02.018
Citation:
Lei Jialiu, Li Desheng, Zhu Hangyu. Calculation Model of Optimal Basicity for the Refining Slag of Bearing Steel Based on IMCT Theory[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(2): 107-111. doi: 10.7513/j.issn.1004-7638.2019.02.018
1. School of Materials Science and Engineering, Hubei Polytechnic University Metallurgy Engineering Department, Huangshi 435003, Hubei, China;
2. Daye Special Steel Corp., Ltd., Huangshi 435000, Hubei, China;
3. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
The fatigue life of bearing steel is closely related to the total oxygen content in the steel.Aimming at the control of T[O]in the bearing steel during refining process,a calculation model of optimal basicity for the refining slag CaO-SiO2-MgO-Al2O3-FeO at 1 853 K is established,based on the ion and molecule coexistence theory（IMCT）.And the influence factors on optimal basicity for the slag system are discussed and analyzed.The results show that:①For different FeO content,the maximum value of NFeO occured when the basicity are all around 3,the optimal basicity basically does not change with the variation of FeO content.②The content of MgO has a great influence on the optimal basicity,with the increase of MgO content,the optimal basicity decreased.③The effect of Al2O3 content on the optimal basicity is opposite to that of MgO.With the increase of Al2O3 content,the optimal basicity increases significantly.
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