稀土铈元素对高硫钢中硫化物的改性
Modification of Sulfides in a High Sulfur Steel by Cerium Element
本研究以某高硫钢为研究对象,通过真空感应炉冶炼了含有不同铈含量的样品。通过夹杂物检测、小样电解实验研究了不同铈含量对钢中硫化物形貌及尺寸的影响,少量稀土铈元素能够减少钢中大尺寸硫化物的生成,增加小尺寸夹杂物的生成。通过侵蚀实验研究了不同类型硫化物在钢中的分布,稀土铈元素明显降低了钢中沿晶界分布的大尺寸Ⅱ类MnS的生成。
In this study,high sulfur steels with different cerium contents were obtained by vacuum induction furnace.The effect of cerium content on the morphology and size of sulfides in the steel were studied by inclusions detection and electrolytic extraction.A small amount of rare earth cerium content could reduce the formation of large size sulfides and increase the formation of small size inclusions.The distribution of different types of sulfides in steel were studied by erosion experiments.The formation of large size class-Ⅱ MnS distributed along grain boundaries was significantly reduced by cerium.
杨海昕;任英;张立峰;
北京科技大学冶金与生态工程学院,北京 100083;北京科技大学冶金与生态工程学院,北京 100083;北方工业大学机械与材料工程学院,北京 100144;
High sulfur steel sulfides cerium element
609-612 / 4
评论