李中元,李长荣

• 1:贵州大学材料与冶金学院
• 2:贵州省冶金工程与过程节能重点实验室

摘要(Abstract)：

通过FactSage热力学计算,分析了稀土Ce元素对钢中夹杂物生成顺序及夹杂物变质的影响,利用扫描电镜和能谱仪(SEM-EDS)等对其物相进行表征分析。结果表明,加入稀土Ce元素后,钢中可能生成夹杂物的热力学排列顺序为CeAlO_3>Al_2O_3>CeO_2>Ce_2O_3>MnS。稀土Ce元素对硫、氧夹杂物的形态和尺寸起到了一定的变质作用,在钢基体中呈现弥散球状化,把近一半数量的夹杂物粒径控制在2～3μm。使钢材性能得到了提高。

关键词(KeyWords)： 稀土Ce元素;热力学计算;夹杂物变质

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51364006)

作者(Author): 李中元,李长荣

DOI: 10.13289/j.issn.1009-6264.2018-0291

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