Influence of crucible material on inclusions in 95Cr saw-wire steel deoxidized by Si–Mn

作     者：Yang Li Chang-yong Chen Guo-qing Qin Zhou-hua Jiang Meng Sun Kui Chen Yang Li;Chang-yong Chen;Guo-qing Qin;Zhou-hua Jiang;Meng Sun;Kui Chen

作者机构：School of MetallurgyNortheasten UniversityShenyang 110819China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2020年第27卷第8期

页      面：1083-1099页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：support from the National Key Research and Development Program of China(No.2016YFB0300105) the Transformation Project of Major Scientific and Technological Achievements in Shenyang(No.Z17-5-003) the Fundamental Research Funds for the Central Universities(No.N172507002) 

主　　题：nonmetallic inclusions 95Cr saw-wire steel crucible material MgO–CaO refractory 

摘      要：To investigate the interaction mechanism between 95 Cr saw-wire steel and different refractories,we conducted laboratory experiments at 1873 *** crucible materials(SiO2,Al2 O3,MgO·Al2 O3,MgO,and MgO-CaO)were *** results indicate that SiO2,Al2 O3,and MgO·Al2 O3 are not suitable for smelting low-oxygen,low-[Al]s 95 Cr saw-wire steel,mainly because they react with the elements in the molten steel and pollute the steel *** contrast,MgO-CaO is an ideal choice to produce 95 Cr saw-wire *** offers three advantages:(ⅰ)It does not decompose by itself at the steelmaking temperature of 1873 K because it exhibits good thermal stability;(ⅱ)[C],[Si],and[Mn]in molten steel cannot react with it to increase the[O]content;and(ⅲ)it not only desulfurizes and dephosphorizes but also removes Al2 O3 inclusions from the steel *** a result,the contents of the main elements([C],[Si],[Mn],[Cr],N,T.O(total oxygen))in the steel are not affected and the content of impurity elements([Al]s,P,and S)can be perfectly controlled within the target ***,the number and size of inclusions in the steel samples decrease sharply when the MgO-CaO crucible is used.