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

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.

Abstract: 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.