（毕业设计论文）《含稀土元素Ce的2Cr13不锈钢的电化学特性及抗菌性研究》.doc

内蒙古科技大学本科生 毕业论文 题 目：含稀土元素Ce的2Cr13不锈钢的电化学特性及抗菌性研究 学生姓名： 学 号： 专 业：金属材料工程 班 级：材料 班 指导教师： 教授含稀土元素Ce的2Cr13不锈钢的电化学特性及抗菌性研究 摘 要 随着石油化工工业、军事工业及海洋开发的迅速发展，满足各种特殊功能要求的功能性不锈钢关键词： Research of 2Cr13 stainless steel with rare earth elements Ce electrochemical properties and antibacterial Abstract As the petrochemical industry, military industry and the rapid development of ocean development, the stainless steel which meet the functional requirements of various special features of have been emerging. A new study shows that amount of rare earth element added to stainless steel can significantly improve performance. The study is add rare earth elements Ce to 2Cr13 stainless steel,then to discuss how rare earth elements Ce have an influence on structure and corrosion resistance of 2Cr13 stainless steel. By observing the microstructure, studying the rare earth elements Ce on the impact of 2Cr13 Stainless Steel. Through the cycle of immersion test, detection of the corrosion potential, impedance and polarization curve measurement and analysis, to study of rare earth elements Ce on corrosion resistance of 2Cr13 stainless steel. Taking a colon bacillus culture on the surface of 2Cr13 stainless steel,and then recording the growth conditions of colon bacillus on the surface of stainless steel to know for sure its antimicrobial. Through experiments and analysis, the result shows that using method of adding Fe-Ce alloy can control the rare earth in stainless steel residues. Rare earth element Ce can significantly improve the organization of 2Cr13 stainless steel, with the increase of RE content，structure significantly refinement and inclusions in steel reduce obviously. Adding rare earth elements Ce can improve the 2Cr13 chemical corrosion of stainless steel,at the same time, reduceing the corrosion rate of 2Cr13 stainless steel significantly. With prolonged immersion of samples,the corrosion rate of samples first increased and then decreased.This is because the surface