刘宁华,李文芳,杜军.6063铝合金着色钛锆转化膜结构和耐蚀性能的研究[J].表面技术,2010,39(5):45-47,94
6063铝合金着色钛锆转化膜结构和耐蚀性能的研究
Study on the Structure and Corrosion Resistance of Chromatic Ti-Zr Based Conversion Layer on 6063 Aluminum Alloy
  修订日期:2010-10-10
DOI:
中文关键词:  铝合金  钛锆  转化膜  耐蚀性
英文关键词:aluminum alloys  Ti-Zr  conversion coating  corrosion resistance
基金项目:粤港关键领域重点突破(佛山专项)专项基金(2008Z012);广东省重大科技专项(产业共性技术)基金(2009A08025002)
作者单位
刘宁华 华南理工大学材料科学与工程学院,广州510641 
李文芳 华南理工大学材料科学与工程学院,广州510641 
杜军 华南理工大学材料科学与工程学院,广州510641 
AuthorInstitution
LIU Ning-hua School of Materials Science and Engineering,South China University of Technology, Guangzhou 510641, China 
LI Wen-fang School of Materials Science and Engineering,South China University of Technology, Guangzhou 510641, China 
DU Jun School of Materials Science and Engineering,South China University of Technology, Guangzhou 510641, China 
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中文摘要:
      为了获得性能优异的有色钛锆转化膜层,利用正交试验确定了组分为六氟钛酸、六氟锆酸、含锰成膜剂和有机酸的6063铝合金转化处理液的较佳配方,并分析了转化膜的表面形貌、成分及耐蚀性能。分析结果表明:生成的转化膜为淡黄色,且均匀、连续;转化膜中含有钛、锆元素,其腐蚀电位和腐蚀电流密度比裸6063铝合金明显降低,说明钛锆转化膜可以更好地抑制铝合金的阴极反应,从而更有效地提高铝合金的耐蚀性能。
英文摘要:
      In order to obtain chromatic Ti-Zr conversion layers with good performance,the conversion solution formula of 6063 aluminum alloy was obtained by orthogonal test consisting of hexafluorotitanic acid,hexafluorozirconic acid, coating former and organic acid. The surface morphology, composition and corrosion resistance of the conversion films were analyzed. The results show that the conversion layer is yellow and uniformly continues and contains Ti,Zr elements. However the corrosion potential and the corrosion current of conversion layer decrease obviously than bared 6063 aluminum alloy. It reveals that the titanium-zirconium solution can further suppress the catholic reaction of aluminum alloy,thus improve the anti-corrosion behavior of aluminum alloy efficiently.
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