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Effect of Rare Earths on Corrosion Resisting Properties of Carbon-Manganese Clean Steels

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【Author】 Guo Feng , Lin Qin , Sun Xueyi (Physical Chemistry Department, University of Science and Technology Beijing, Beijing 100083, China)

【机构】 Physical Chemistry Department； University of Science and Technology Beijing； Beijing 100083； China； China；

【Abstract】 Electrochemistry experiments were made on carbon-manganese clean steel with rare earths Ce and La respectively to observe corrosion parameters such as corrosion current i_corr, and characteristic potential of pitting E_b. The results indicate that the rare earths have effect on corrosion resisting properties of carbon-manganese clean steel, and the optimum contents of La is about 0.011% （mass fraction） and Ce about 0.014% （mass fraction） respectively. The change of corrosion resistance is related to the action of rare earths on microstructure and effect on surface state of samples in the process of polarization.更多还原

【关键词】 metal material； corrosion resistance； carbon-manganese clean steel； electrochemistry； rare earths；
【Key words】 metal material； corrosion resistance； carbon-manganese clean steel； electrochemistry； rare earths；

【基金】 ProjectsupportedbytheMinistryofScienceandTechnologyofChina ( 2 0 0 2BA3 15A -5 )

【文献出处】 Journal of Rare Earths ,稀土学报(英文版) , 编辑部邮箱 ,2004年04期

【分类号】TG174
【被引频次】3
【下载频次】42

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