第一作者：李阳
通讯作者：李花兵
合写作者：孙萌,姜周华,陈常勇,陈奎,黄新凤,孙深
发表刊物：Metals
期号：1
卷号：9
影响因子：2.6
DOI码：10.3390/met9010054
所属单位：东北大学冶金学院
教研室：绿色智能特殊钢冶金研究中心
摘要：In the present study, the effect of cerium content in the range of 0~0.0676% on oxygen and sulfur content, as well as the quantity, size, distribution, and type of inclusions in C104Cr saw wire steel, were investigated using thermodynamic analysis, metallographic examination, SEM-EDS, and component analysis. The results showed that conducting a vacuum carbon pre-deoxidization process is helpful in preventing the formation of Ce2O3 inclusions in a smelting experiment, and cerium has a beneficial effect in terms of modifying inclusions. When the content of cerium in steel is 0.0136% or 0.0277%, the main inclusions in the steel are Ce2O2S and CeS, and when the content of cerium is 0.0389% or above, the inclusions in the steel are Ce2O2S, CeS, Ce–S–O–P(As), Ce–O–P, and Ce–P(As). The calculation of the segregation model showed that the precipitation of CeP and CeAs in steel takes place at the end of solidification. According to the element mapping distribution diagram of Ce–S–O–P(As) and the layered Ce–O–P inclusions found in steel with high cerium content, two possible mechanisms for the formation of Ce2O3 inclusions distributed in the outer layer of cerium composite inclusions are proposed. The first mechanism suggests that Ce2O3 inclusions are generated from the combination of [Ce] and [O] directly, and the second suggests that Ce2O3 is the product of an oxidization reaction after the formation of CeP.
关键字：C104Cr saw wire steel; cerium; inclusions
论文类型：SCI
备注：无
学科门类：工学
一级学科：冶金工程
页面范围：54
ISSN号：2075-4701
是否译文：否