409L不锈钢连铸坯表层夹杂物试验研究
Experimental Study on Surface Inclusions in 409L Stainless Steel Continuous Casting Billets
吴月龙 1李翠 1蒋鹏 1张海敬1
作者信息
- 1. 山东泰山钢铁集团有限公司,山东 济南 271100
- 折叠
摘要
为研究409L不锈钢连铸坯表层夹杂物形貌、分布及类别,取样后逐次研磨1mm后进行夹杂物检测,并将检测结果进行对比分析.发现夹杂物分布呈随机性分布特征、尺寸主要集中在2～5 μm,在空间分布上呈现随着深度的增加夹杂物数量呈现递减、中间位置夹杂物数量较两端少、内弧侧数量略高于外弧侧的特征,连铸坯表层夹杂物主要为12CaO-7Al2O3及一定比例的氧化物及少量其他类别夹杂物.
Abstract
To study the morphology,distribution,and category of inclusions on the surface of 409L stainless steel continuous casting billets,samples were taken and ground 1 mm each time before conducting inclusion detection.The detection results were compared and analyzed.It was found that the distribution of inclusions is characterized by randomness,and the size is mainly concentrated in 2-5 μm.The spatial distribution shows a decreasing number of inclusions with increasing depth,with fewer inclusions at the middle position compared to the two ends,and a slightly higher number of inclusions on the inner arc side than that on the outer arc side.The surface inclusions of the continuous casting slab are mainly 12CaO-7Al2O3 and a certain proportion of oxides,as well as a small amount of other types of inclusions.
关键词
409L不锈钢/连铸坯/表层/夹杂物/分布Key words
409L stainless steel/continuous casting billet/surface/inclusions/distribution引用本文复制引用
出版年
2024
NETL
NSTL
万方数据