Research progress of rare earth Ce on improvement of microstructure and homogeneity of as- cast steel |
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| Authors: | LI Gen LU Min- gang LAN Peng TANG Hai- yan ZHI Jian- guo ZHANG Jia- quan |
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| Affiliation: | 1.School of Metallurgical and Ecological Engineering?? University of Science and Technology Beijing?? Beijing 100083?? China ; 2.Baotou Iron and Steel Group Corp?? Baotou 014010?? Nei Mongol?? China |
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| Abstract: | The thermodynamic behavior of Ce and its compounds in molten steel was summarized, and the types of stable compounds after Ce added to molten steel and its variation were predicted. The mechanisms and rules of Ce compounds and dissolves Ce refining solidification structure of as- cast steel were summarized respectively. The improvement of homogenous by Ce was analyzed and the reason of decrease of element segregation was summarized. At last, some problems were pointed out which had not been solved in the research of rare earth Ce to improve the microstructure and homogeneity of steel, and put forward the main directions of the future research in this field. |
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| Keywords: | Rare earth cerium steel as cast structure grain refinement compositional homogenization |
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