磁致振荡对65Mn钢铸锭内部组织的影响

钢铁研究, 2014, 42(6): 35-42.

磁致振荡对65Mn钢铸锭内部组织的影响

曹同友 ^1, , 翟启杰 ^2, , 李仁兴 ^3, , 张剑君 ^4, , 陈俊孚 ^5,

1.武汉钢铁(集团)公司研究院,湖北武汉430080

2.上海大学,上海200444

3.上海大学,上海200444

4.武汉钢铁(集团)公司研究院,湖北武汉430080

5.武汉钢铁(集团)公司研究院,湖北武汉430080

关键词： 65Mn钢 , 磁致振荡 , 等轴晶率

Effect of magnetic oscillation on inner structure of 65Mn steel

Keywords： 65M steel , magnetic oscillation , equiaxed grain ratio

在中试工厂对65Mn钢在其浇铸过程中进行了磁致振荡处理,分析了磁致振荡对65Mn钢铸锭等轴晶率和晶粒尺寸的影响.结果表明:通过脉冲磁致振荡处理,65Mn钢铸锭的柱状晶数量显著减少,晶粒尺寸显著变小;等轴晶率从17％提高到50％以上,晶粒尺寸细化2倍以上.

Pulse magnetic oscillation treatments with 65Mn steel were carried out in the process of casting in the trial plant,and effects of magnetic oscillation on equiaxed grain ratio and grain size were analyzed.Results show that by pulse magnetic oscillation treatment,quantity of columnar grains in 65Mn steel decreased obviously,and grain size reduced significantly; equiaxed grain ratio increased from 17 ％ to more than 50 ％,and grain size reduced by more than 2 times.

参考文献

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[2]	田乃媛.薄板坯连铸连轧[M].北京:冶金工业出版社,2004
[3]	中国机械工程学会铸造专业学会.铸造手册[M].北京:机械工业出版社,1998

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