以锰酸盐和锆盐为主盐,在铝合金表面化学氧化得到耐蚀性能良好的化学氧化膜.采用正交试验优化溶液的配方与工艺条件,采用极化曲线及交流阻抗测量分析其耐蚀性.铝合金化学氧化膜的腐蚀电位比铝合金试样的腐蚀电位正0.45 V左右,腐蚀电流密度仅0.286 μA/cm2.交流阻抗谱图低频端的阻抗值比铝合金试样的值大一个数量级.铝合金化学氧化膜外观呈金黄色,具有规则排列的柱状生长结构.
参考文献
| [1] | 胡信国 .铝及其合金的铬酸盐处理技术[J].电镀与环保,1991,11(05):17-20. |
| [2] | Fedrizzi L;Deflorian F;Bonora P L .Corrosion behaviour of fluotitanate pretreated and painted aluminium sheets[J].Electrochimica Acta,1997,42(06):969-970. |
| [3] | 李鑫庆;陈迪勤;余静琴.化学氧化膜技术与应用[M].北京:机械工业出版社,2005:81-82. |
| [4] | 于元春,李宁,胡会利,张景双,屠振密.无铬钝化与三价铬钝化的研究进展[J].表面技术,2005(05):6-9. |
| [5] | 陈东初,黄柱周,李文芳.铝合金表面无铬化学转化膜的研究[J].表面技术,2005(06):38-39. |
| [6] | 王成,江峰,林海潮.Al合金表面铬酸盐处理及替代工艺研究进展[J].腐蚀科学与防护技术,2001(06):347-350. |
| [7] | 郭瑞光,杨杰,康娟.铝合金表面钛酸盐化学转化膜研究[J].电镀与涂饰,2006(01):46-48. |
| [8] | Nordlien JH.;Walmsley JC.;Osterberg H.;Nisancioglu K. .Formation of a zirconium-titanium based conversion layer on AA 6060 aluminium[J].Surface & Coatings Technology,2002(1):72-78. |
| [9] | Lunder O;Simensen C;Yu Y;Nisancioglu K .Formation and characterisation of Ti-Zr based conversion layers on AA6060 aluminium[J].Surface & Coatings Technology,2004(2/3):278-290. |
| [10] | Hamdy AS.;Beccaria AM. .Chrome-free pretreatment for aluminium composites[J].Surface and Interface Analysis: SIA: An International Journal Devoted to the Development and Application of Techniques for the Analysis of Surfaces, Interfaces and Thin Films,2002(1):160-163. |
| [11] | Bibber J W.A chromium-free conversion coating for alu-minum[J].Metal Finishing,1993(12):46-47. |
| [12] | 王成,江峰,林海潮,姜喜奎.铝合金钼酸盐转化膜研究[J].电镀与精饰,2001(03):8-10. |
| [13] | Bethencourt M;Botana FJ;Cano MJ;Marcos M .Advanced generation of green conversion coatings for aluminium alloys[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2004(1/4):278-281. |
| [14] | Fahrenholtz WG.;O'Keefe MJ.;Zhou HF.;Grant JT. .Characterization of cerium-based conversion coatings for corrosion protection of aluminum alloys[J].Surface & Coatings Technology,2002(2/3):208-213. |
| [15] | Bethencourt M;Botana F J;Calvino J J et al.Lanthanide compounds as environmentally-friendly corrosion inhibitors of aluminium alloys:areview[J].Corrosion Science,1998,40(11):1083-1819. |
| [16] | M.R.S. Castro;J.C. Nogueira;G.P. Thim;M.A.S. Oliveira .Adhesion and corrosion studies of a lithium based conversion coating film on the 2024 aluminum alloy[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2004(2):307-312. |
| [17] | Hamdy AS .Corrosion protection of aluminum composites by silicate/cerate conversion coating[J].Surface & Coatings Technology,2006(12/13):3786-3792. |
| [18] | 付蓉.金属铬酸盐化学转化处理的替代技术[J].汽车工艺与材料,2004(07):71-73. |
| [19] | Deck P D;Reichgott D W .Characterization of chromium-free no-rinse prepaint coatings on aluminum and galvanized steel[J].Metal Finishing,1992,90(09):27-30. |
| [20] | J. Bibber .An update on chrome-free pretreatments for aluminum[J].Metal finishing,1998(4):28-31. |
| [21] | 邹洪庆.铸铝合金锆系非铬化学成膜处理工艺应用[J].材料保护,2001(02):29-30,31. |
| [22] | Schram T;Goeminne G;Terryn H et al.Study of the Composition of zirconium free conversion layers on aluminum[J].Transactions of the Institute of Metal Finishing,1995,73(03):91-95. |
| [23] | 田连朋,左禹,赵景茂,熊金平,张晓丰,赵旭辉.LD7铝合金阳极氧化膜的不同封闭方法耐蚀性评价[J].中国腐蚀与防护学报,2005(06):327-331. |
| [24] | 梁燕萍;卢敏 .低温封闭改善铝氧化膜防护性能机理的研究[J].西安电子科技大学学报,1995,22(04):403-406. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%