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| 稀土镧对钢中残余元素的固定作用 | |
| 引用本文： | 沙爱学,王福明,吴承建,董履仁,李尚诣,陈亚贤,朱立新. 稀土镧对钢中残余元素的固定作用[J]. 稀有金属, 2000, 24(4): 287-291 |
| 作者姓名： | 沙爱学 王福明 吴承建 董履仁 李尚诣 陈亚贤 朱立新 |
| 作者单位： | 1. 北京科技大学,北京100083 2. 中国金属学会,北京100711 3. 上海宝山钢铁(集团)公司,上海201900 |
| 摘 要： | 采用Ｍｉｅｄｅｍａ二元生成热模型，从热力这证明了稀土镧和多种残余元素反应是完全可能的。采用ＳＥＭ及ＴＥＭ手段研究了稀土尖不同锡含量的钢中形成夹杂的情况。镧放钢中较低含量的锡（０．０４５％）作用生成简化合物。证实了用移土金属减轻低氧、低硫钢中残余元素钢性能危害的可行性。 |
| 关 键 词： | 残余元素 热力学计算 稀土金属 镧 钢 固定作用 |
| 修稿时间： | 1999-01-11 |
Fixation of Tramp Elements in Steel by Lanthanum |
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| Sha Aixue,Wang Fuming,Wu Chengjian,Dong Luren,Li Shangyi,Chen Yaxian,Zhu Lixin. Fixation of Tramp Elements in Steel by Lanthanum[J]. Chinese Journal of Rare Metals, 2000, 24(4): 287-291 | |
| Authors: | Sha Aixue Wang Fuming Wu Chengjian Dong Luren Li Shangyi Chen Yaxian Zhu Lixin |
| Abstract: | Thermodynamically, it was confirmed that lanthanum can react with several tramp elements by means of Miedema binary formation heat model. The reaction between lanthanum and tin in steels was investigated. The experimental results firstly show that lanthanum can react with relatively low content of tin (0.045%), contained in the steel studied, to form intermetallic compound consisting of lanthanum and tin. Therefore, it shows that the method for reduction of the detrimental effect of tramp elements by use of rare earth metals is feasible. |
| Keywords: | Tramp elements Thermodynamic calculation Rare earth metal |
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