材料研究学报  2007, Vol. 21 Issue (5): 471-476

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Al含量对镁铝合金大气腐蚀产物膜结构与性能的影响

贾瑞灵;严川伟;王福会

贾瑞灵; 严川伟; 王福会 . Al含量对镁铝合金大气腐蚀产物膜结构与性能的影响[J]. 材料研究学报, 2007, 21(5): 471-476.

摘要 参考文献 相关文章 Metrics 全文: PDF(1382 KB)   摘要: 采用X射线衍射(XRD)和扫描电镜能谱(EDS)面扫描分析技术,研究了Al含量对实验室模拟的潮湿大气中由NaCl盐粒诱发的3种镁合金腐蚀产物膜结构和成分的影响.结果表明, 腐蚀产物主要为Mg(OH)$_{2}$和Mg$_{2}$(OH)$_{3}$C1$\cdot$4H$_{2}$O,随着合金中Al含量的增加, 腐蚀产物中Al参与生成的产物增多,但腐蚀产物膜的结构变得疏松多孔.采用电化学交流阻抗(EIS)测试了膜层的保护性.结果表明, 3种不同Al含量镁合金腐蚀产物膜的保护性能均随着暴露时间的延长而提高;在相同的暴露时间内, 镁合金中Al含量越高, 腐蚀产物膜的阻抗值愈小, 膜层的保护性愈差.其原因是Al的含量越高, 腐蚀产物膜的结构变得愈加疏松和多孔. Key words： 收稿日期: 1900-01-01      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 贾瑞灵 严川伟 王福会 44.8K 链接本文: https://www.cjmr.org/CN/Y2007/V21/I5/471 1 TANG Wei,HAN Enhou,XU Yoagbo,LIU Lu,Effect of Al,Ca alloying elements on mechanical behavior of wrought magnesium alloys,Chinese Journal of Materials Research,19(5),473(2005) (唐伟，韩恩厚，徐永波，刘路，Al和Ca对变形镁合金性能的影响，材料研究学报，19(5)，473(2005)) 2 R.Lindstrom,L.G.Johansson,G.E.Thompson,P.Skeldon, J.E.Svensson,Corrosion of magnesium in humid air,Cor- rosion Science,46,1441(2004) 3 R.Lindstrom,L.G.Johansson,J.E.S.vensson,The influence of NaCl and CO_2 on the atmospheric corrosion of magne- sium alloy AZ91,Materials and Corrosion,54,587(2003) 4 M.Jonsson,D.Persson,D.Thierry,Corrosion product formation during NaCl induced atmospheric corrosion of magnesium alloy AZ91D,Crossion Science,49, 1558(2007) 5 LIN Cui,LI Xiaogang,Atmospheric corrosion initial stages of magnesium alloy in the presence of NaCl and SO_2,Journal of Univeristy of Science and Technology Bei- jing,26(5),524(2004) (林翠，李晓刚，NaCl沉积和SO_2污染对镁合金初期大气腐蚀行为的影响，北京科技大学学报，26(5)，524(2004)) 6 Wan Ye,Yan Chuanwei,Synergetic effect of soluble salts and SO_2 on atmospheric corrosion of diecast AZ91D mag- nesium alloy,The Chinese Journal of Nonferrous Metals, 16(1),176(2006) (万哗，严川伟，几种盐沉积和微量SO_2对AZ91D镁合金大气腐蚀的协同作用，中国有色金属学报，16(1)，176(2006)) 7 Song Guangling,Corrosion and Protection to Magnesium Alloys,(Beijing,Chemical Industry Press,2006)p160 (宋光铃，镁合金腐蚀与防护，(北京，化学工业出版社，2006) p．160) 8 Y.Y.Chen,S.C.Chung,H.C.Shih,Studies on the initial stages of zinc atmospheric corrosion in the presence of chloride,Corrosion Science,48,3553(2006) 9 A.K.Neufeld,I.S.Cole,A.M.Bond,S.A.Furman,The initi- ation mechanism of corrosion of zinc by sodium choloride particle deposition,Corrosion Science,44,559(2002) 10 J.H.Nordlien,K.Nisancioglu,Morphology and structure of oxidefilm formed on MgAl alloys by exposure to air and water,J.Electrochem.Soc.,143,2568(1996) 11 CAO Chunnan,ZHANG Jianqing,An Introduction to Electrochemical Impedance Spectroscopy,(Beijing,Science Press,2002)p.45 (曹楚南，张鉴清，电化学阻抗谱导论，(北京，科学出版社，2002) p．45) No related articles found! Viewed Full text Abstract Cited   Shared      Discussed