高镧稀土添加剂在16Mn钢中的应用  

Effect of High-La Rare Earth Additives on Properties of 16Mn Steel

作　　者：陈冬火[1] 林勤[1] 郭锋[1] 高平祥[2] 王跃华[2] 万恒瑜[2] 

机构地区：[1]北京科技大学冶金与生态学院,北京100083 [2]武钢铁路工程器材厂,武汉430083

出　　处：《北京科技大学学报》2004年第6期600-603,共4页Journal of University of Science and Technology Beijing

基　　金：国家"十五"攻关项目(No.2002BA315A-5)

摘　　要：针对高镧稀土添加剂对16Mn钢的夹杂物、力学性能的影响进行分析研究,并与富铈稀土添加剂进行对比.实验表明,高镧稀土添加剂能有效变质16Mn钢中的夹杂物,减少夹杂物的数量,改善钢的力学性能.当La／S(质量比)为2.5时,综合力学性能达到最佳值.高镧稀土添加剂能有效替代富铈稀土添加剂进行稀土钢的开发.A technique for treating 16 Mn steel with high-La mischmetal additives was proposed. The effect of the additives on the inclusion and mechanical properties of 16Mn steel was investigated and compared with that of Ce-rich additives. It is shown that high-La rare earth additives play a role in modifying inclusion and improving properties of the steel. The optimum effect of RE occurs when the mass ratio of RE/S=2.5. The high-La mischmetal can replace Ce-rich mischmetal with RE additives for treating 16 Mn steel.

关 键 词：16MN钢 夹杂物 力学性能 高镧混合稀土 添加剂 

分 类 号：TG142.1[一般工业技术—材料科学与工程]