镧与钢中磷的相互作用  

Reaction between Lanthanum and Phosphorus in Steel

作　　者：沙爱学 王福明[1] 吴承建[1] 董履仁 李尚诣[2] 陈亚贤 朱立新 

机构地区：[1]北京科技大学冶金学院冶炼研究室,北京100083 [2]中国金属学会,北京100711 [3]宝山钢铁公司钢研究所,上海201900

出　　处：《中国稀土学报》2000年第1期52-54,共3页Journal of the Chinese Society of Rare Earths

摘　　要：采用Miedema二元生成热模型 ,由热力学证明La固定钢中P是完全可能的。通过SEM及TEM手段研究了La和P的相互作用情况。电子衍射结果表明 :La和P作用生成的是LaP ,从而证实了用稀土元素减轻低O、低S钢中P危害的可能性。Using Miedema binary formation heat model, it was confirmed thermodynamically that the fixation of P by rare earth element La is possible. The reaction between La and P was studied by means of SEM and TEM. The result of electron diffraction shows that the compound between La and P is LaP. Therefore, the possibility of reducing detrimental effect of P in low oxygen and sulfur steels by addition of rare earth metals is clarified.

关 键 词：热力计算 镧 钢磷 金相分析 

分 类 号：TG115.21[金属学及工艺—物理冶金]