Reaction between Lanthanum and Phosphorus in Steel
来源期刊：JOURNAL OF RARE EARTHS2000年第1期
论文作者：DONG Lu-ren ZHU Li-xin SHA Ai-xue WANG Fu-ming CHEN Ya-xian LI Shang-yi WU Cheng-jian
Key words：rare earths; phosphorus; thermodynamic calculation;
Abstract: Using Miedema binary heat formation model, it was confirmed thermodynamically that the fixation of P by 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.
DONG Lu-ren1，ZHU Li-xin2，SHA Ai-xue1，WANG Fu-ming1，CHEN Ya-xian2，LI Shang-yi3，WU Cheng-jian1
(1.Metallurgical Engineering School, University of Science & Technology Beijing, Beijing 100083, China;
2.Steel Research Institute, Baoshan Steel & Iron Group Cooperation, Shanghai 201900, China;
3.Metal Society of China, Beijing 100711, China)
Abstract:Using Miedema binary heat formation model, it was confirmed thermodynamically that the fixation of P by 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.
Key words:rare earths; phosphorus; thermodynamic calculation;
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