稀土镧铈对钢液洁净度提高和钢材性能强化作用研究进展  

Research Progress on Effects of Rare Earth Lanthanum and Cerium on Improving Cleanliness of Liquid Steel and Strengthening Properties of Steel

作　　者：刘宇航 包燕平[1] 吕子宇 顾超[1] 王皓[2,3] Liu Yu-hang;Bao Yan-ping;Lv Zi-yu;Gu Chao;Wang Hao(State Key Laboratory of Advanced Metallurgy,University of Science andTechnology Beijing,Beijing 100083,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Inner Mongolia Key Laboratory of Rare Earth Steel Products Research&Development,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]北京科技大学绿色低碳钢铁冶金全国重点实验室,北京100083 [2]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010 [3]内蒙古自治区稀土钢产品研发重点实验室,内蒙古包头014010

出　　处：《包钢科技》2024年第4期37-46,共10页Science & Technology of Baotou Steel

摘　　要：我国稀土产业中元素应用失衡,高丰度镧、铈过剩,稀土在钢中的应用逐渐得到重视。文章综述了近年来国内外采用稀土镧铈处理钢的研究进展,包括稀土在净化钢液、变质夹杂物和微合金化方面的效果,设计稀土脱氧试验证明了稀土可作为钢液脱氧剂的可行性。介绍了稀土在强化钢材性能方面的表现,并介绍了稀土与碱金属协同净化钢液及低氧条件下稀土合金化的优越性。在总结现有成果的基础上,对稀土在钢中的高效利用进行了展望。The applications of elements are out of balance in the rare earth industry in our country as well as abundant lanthanum and cerium are surplus so that the applications of rare earth in steel are gradually heeded.In the paper,the research progress on treating steel with rare earth lanthanum and cerium at home and abroad in recent years are overviewed,which includes the effects of rare earth on purifying liquid steel,modifying inclusions and microalloying as well as design of deoxidation test for rare earth proves the feasibility of rare earth as deoxidizer of liquid steel.Moreover,the performances of rare earth in strengthening properties of steel as well as superiorities of purifying liquid steel with rare earth and alkali metal and microalloying of rare earth under low oxygen condition are introduced.The efficient utilizations of rare earth in steel are expected based on summarizing the on-going results.

关 键 词：稀土钢 净化钢液 稀土夹杂物 微合金化 

分 类 号：TG142[一般工业技术—材料科学与工程]