稀土合金化石油套管钢精炼-连铸-轧制过程夹杂物演变行为

梁雨雨, 倪培远, 刘麒麟, 厉英

Evolution Behavior of Inclusions in Rare Earth Metal Alloying Oil Casing Steel During Refining and Casting and Hot-Rolling Process

LIANG Yuyu, NI Peiyuan, LIU Qilin, LI Ying

图11 沿法向(ND)不加稀土炉次和加稀土炉次热轧管坯样典型夹杂物形貌的SEM像和EDS分析

Fig.11 Typical SEM images and EDS analysis results of inclusions along ND for RE-free steel (a-d) and RE steel (e-h) in the hot rolled tube blank samples (a, b, e, f) SEM images and corresponding EDS point scanning results (c, d, g, h) SEM images and corresponding EDS element mapping analyses