AOD不锈钢渣矿相组成及其显微形貌
Mineral Compositions and Microstructures of AOD Stainless Steel Slag
王亚军 1李俊国 1郑娜1
作者信息
- 1. 河北联合大学冶金与能源学院,唐山河北063009
- 折叠
摘要
利用X射线衍射分析AOD渣的矿物组成,采用电子显微镜观察AOD渣的显微形貌,采用偏/反两用研究型显微镜观察AOD渣矿物相的嵌布特征.结果表明:AOD渣的主要物相为硅酸二钙、镁硅钙石、辉石、硅钙石及少量的尖晶石、磁铁矿以及微量的富氏体、玻璃相、RO相和铁酸钙;硅酸二钙体积分数达80％以上,镁硅钙石、辉石、硅钙石体积分数分别为5％左右;硅酸二钙和硅钙石为黑色相,硅酸二钙呈细小粒状集合体、柱状,粒度粗细不等;硅钙石呈他形晶、细小柱状;镁硅钙石存在于灰色相,主要呈他形粒状、细小纺锤状、短柱状;辉石、尖晶石和RO相包裹于优势相中,辉石呈他形粒状,粗细不等.
Abstract
Mineral compositions,microscopic morphology and distribution characteristics of AOD stainless steel slag were analyzed by X-ray diffraction,electron microscope and specialized optical microscope respectively.It is suggested that dominant phases in the slag include C2S,C3MS2,augite,and rankinite,and a small amount of spinel,magnetite and little wustite,glass phase,RO phase and calcium ferrite.The volume fraction of C2S in AOD slag accounts for above 80％,while that of C3MS2,augite or rankinite for about 5％ each.C2S and rankinite are black phases under metallurgical microscope.C2S exists in fine granular aggregation or column with different particle size,and rankinite mainly in anhedron or fine column.C3MS2 is found in gray phase,and mainly in anhedron,fine spindle or short column.Augite,spinel and RO are parceled in advantageous phase,and augite is in anhedron with different particle size.
关键词
不锈钢渣/AOD精炼/矿物组成/显微结构/嵌布特征Key words
stainless steel slag/argon oxygen decarburization/mineralogical composition/microstructure/distribution characteristic引用本文复制引用
基金项目
出版年
2013
国家科技期刊平台
NSTL
维普
万方数据