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Microstructure and compound developed from the Fe-Ce-As at 1323K
Preview AbstractThe Arsenic in steel commonly comes from a certain amount of iron ore but it is difficult to remove them in the iron and steelmaking process because its oxidation potential is lower than that of Iron. In this study, a certain amount of rare earth metal, Cerium and a metal with low melting point, Arsenic were closed in the barrel-shaped cylinder machine by H08 steel, heated to 1323K for 50 hours. Interaction among the cerium, arsenic and iron in the barrel-shaped cylinder were studied by X-ray diffraction, optical microscopy, and electronic probe microscopy analysis. The result shows that the ternary compound Ce12Fe57.5As41 can be developed at 1323K when the atomic ratio of Cerium to Arsenic is 1:3. The binary compound CeAs is the main product at 1323K in the Fe-As-Ce system. The eutectic compound Fe2As can be precipitated from ferrite with the temperature decreasing.