【摘要】 本文以铈铸铁为研究对象,通过光学显微镜和扫描电镜观察、X射线衍射、透射电镜选区电子衍射及电子探针分析等手段,鉴别出含铈铸铁基体中除存在有Ce₂O₃、Ce₂O₂S和Ce₂S₃等稀土氧、硫化合物外,尚存在着Ce₂Fe₁₇、CeC₂、CeFe₂二元铈化合物和Fe₄Ce₄C₇三元铈化合物。发现铸铁中的CeFe₂和Ce₂Fe₁₇相中固溶有碳。更多还原

【Abstract】 In the present study, the analytical techniques of metallography, scanning evectron microscopy, X-Yay diffraction and electron diffraction and electron microprobe measurements of selected areas have been used to distinguish the types of cerium-compounds in the matrix of commercial cast iron into which cerium has been added. Results show that seven kinds of cerium-compounds can be recognized, namely Ce₂Fe₁₇, CeFe₂,CeC₂, Ce₂S₃, Ce₂O₃ binary compounds and Fe₄Ce₄₇, Ce₂O₂S ternary compounds. Both CeFe₂ and Ce₂ F₁₇ phases in the cast iron have carbon dissolved in as solid solution.更多还原