| 稀土在低硫16Mn钢中的作用 |
| |
| 引用本文： | 褚幼义,余宗森,袁建明,钟德惠,韩云龙.稀土在低硫16Mn钢中的作用[J].北京科技大学学报,1987(3). |
| |
| 作者姓名： | 褚幼义 余宗森 袁建明 钟德惠 韩云龙 |
| |
| 作者单位： | 北京钢院金物教研室
(褚幼义，余宗森，袁建明)，北京钢铁学院鞍钢钢研所
(钟德惠)，北京钢铁学院鞍钢钢研所(韩云龙) |
| |
| 摘 要： | 长条状的MnS夹杂对钢的横向韧塑性极为不利。喷吹Si—Ca或加入RE,通过脱硫和变质硫化物的作用,都可显著地消除其危害。喷吹Si—Ca变质硫化物的程度与钢中Ca/S有关。喷吹Si—Ca后加入少量RE,有利于控制MnS完全变质,此时钢中所需的RE/S可明显低于3。在大幅度脱硫的基础上加入少量RE,是使钢材韧塑性获得稳定大幅度提高的一条有效途径。
|
| 关 键 词： | 稀土 Mn钢 脱硫 炼钢 |
The Role of Rare Earth in Low Sulfur 16Mn Steels |
| |
| Chu youyi Yu Zongsen Yuan Jianming Zhoug Dehui Han Yunlong.The Role of Rare Earth in Low Sulfur 16Mn Steels[J].Journal of University of Science and Technology Beijing,1987(3). |
| |
| Authors: | Chu youyi Yu Zongsen Yuan Jianming Zhoug Dehui Han Yunlong |
| |
| Institution: | Chu youyi Yu Zongsen Yuan Jianming Zhoug Dehui Han Yunlong |
| |
| Abstract: | The role of rare earth in low carbon manganese ( 16Mn ) steels with ordinary and low sulfur content obtained by ladle injection of SiCa powder has been investigated in industrial scale. It has been shown that elongated MnS inclusion is harmful to the transversal ductility and toughness of the steels. By means of ladle injection of Si-Ca powder or rare earths ( RE ) additions, its detrimental effect can be alleviated through desulfurization and shape control of sulfides. With the ladle injection of Si-Ca powder, the modification degree of MnS inclusions depends on the ratio of Ca/S in the steel.It has been found that a small amount of RE addition after ladle injection of Si-Ca powber is available to ensure the complete shape control of sulfide in production practice and the ratio of RE/S required in the steel is much less 3 because of the co-existance of Ca in the steel. It has been suggested that the combination of desulfurization and RE addition is one of the efficient approach to obtain great and stable improvement of ductility and toughness of the steel. |
| |
| Keywords: | rare earth Mn steel desulfurization steelmaking |
| 本文献已被 CNKI 等数据库收录！ |
