采用硅烷溶液浸湿处理在AZ31B镁合金表面生成一层保护膜,采用扫描电镜、金相显微镜及体式显微镜观察试样表面形貌,并通过傅立叶红外光谱(FTIR)对硅烷膜与基体的键合进行测试分析;采用盐水浸泡、动电位极化曲线研究硅烷膜层的耐腐蚀性能,并与磷化膜层进行对比.结果表明:AZ31B镁合金经硅烷化处理,可以在其表面生成一层极薄的透明硅烷膜层,该膜层平整致密,对镁合金的自腐蚀电位影响不大,但大幅度降低了镁合金的自腐蚀电流密度,很好地抑制了镁合金的腐蚀.
参考文献
| [1] | 吴敏,吕柏林,梁平.镁及其合金表面处理研究现状[J].表面技术,2005(05):13-15,90. |
| [2] | 张津;章宗和.镁合金及应用[M].北京:化学工业出版社,2004 |
| [3] | Wire J van Ooij;Fairfield;Ashok Sabata et al.Metal sheet with enhanced corrosion resistance having a silane treated silicate coating[P].US 5108793,1992. |
| [4] | Wim J van Ooij;Fairfield;Ashok Sabata et al.Metal sheet with enhanced corrosion resistance having a silane treated aluminate coating[P].US 5322713,1994. |
| [5] | Wim J van Ooij;Ricole A.Edwards;Ashok Sabata et al.Metallic coated sheet having a silane film providing temporary corrosion protection and method therefore[P].US 5292549,1994. |
| [6] | Palanivel V.;Zhu DQ.;van Ooji WJ. .Nanoparticle-filled silane films as chromate replacements for aluminum alloys[J].Progress in Organic Coatings: An International Review Journal,2003(3/4):384-392. |
| [7] | 刘倞,胡吉明,张鉴清,曹楚南.金属表面硅烷化防护处理及其研究现状[J].中国腐蚀与防护学报,2006(01):59-64. |
| [8] | 吴海江,卢锦堂,陈锦虹.热镀锌钢表面硅烷膜耐蚀性能的初步研究[J].腐蚀与防护,2006(01):14-17. |
| [9] | Zucchi F;Grassi V;Frignani A;Monticelli C;Trabanelli G .Influence of a silane treatment in the corrosion resistance of a WE43 magnesium alloy[J].Surface & Coatings Technology,2006(12/13):4136-4143. |
| [10] | 胡吉明,刘倞,张金涛,张鉴清,曹楚南.铝合金表面BTSE硅烷化处理研究[J].金属学报,2004(11):1189-1194. |
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