【作者】 常开地； 赵焕春； 张慧峰； 张玮； 张永军； 王国连； 李飞；

【Author】 CHANG Kai-di1,ZHAO Huan-chun1,ZHANG Hui-feng1,ZHANG Wei1,ZHANG Yong-jun1,WANG Guo-lian,LI Fei2 (1.Shougang Technical Research Institute,Beijing 100041,China; 2.Shougang Second Steelmaking Plant,Beijing 100041,China)

【机构】 首钢技术研究院； 首钢二炼钢厂；

【摘要】 通过金相显微镜、扫描电镜和能谱观察和分析了转炉生产的含硫非调质钢轧后硫化物夹杂的形貌。结果表明,含硫非调质钢中硫化物夹杂的形貌有长条状、纺锤状、椭球状及球状。当钢中钙含量较低时,形成(Mn,Ca)S夹杂,形状为纺锤状、椭球状;随着钢中钙含量的增加,形成CaS夹杂,其形状变为球状。钢中的氧化物可以成为MnS的析出核心,形成复合型夹杂物。更多还原

【Abstract】 The morphology of sulphide inclusions in Sulphur-comprising non-quenched-tempered steel manufactured by converter during rolling were observed.The results show that the morphology of sulphide inclusions can be classified as strip,spindly,ellipsoidal and spherical.When calcium content is low,(Mn,Ca) S inclusions with spindly,ellipsoidal is formed.When calcium content is high,CaS inclusions with spherical is formed.The oxides in steel can work as the precipitation sites of MnS,which compound type inclusions are formed.更多还原