On conversion coating treatments to replace chromating for Al alloys: Recent developments and possible future directions

被引:77
作者
Kulinich, S. A. [1 ,2 ]
Akhtar, A. S. [1 ]
机构
[1] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada
[2] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan
关键词
conversion coatings; aluminium alloys; anticorrosive protection; chromate-free coatings; surface microstructure; ZINC PHOSPHATE COATINGS; 2024-T3; ALUMINUM-ALLOY; SOL-GEL COATINGS; CU-MG ALLOYS; SEALING ANODIZED ALUMINUM; NEAR-EDGE SPECTROSCOPY; RARE-EARTH CHLORIDES; CORROSION-RESISTANCE; CHEMICAL CONVERSION; MAGNESIUM ALLOY;
D O I
10.3103/S1067821212020071
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Anticorrosive protection of Al alloys still depends heavily on the use of chromates, which are widely and universally employed as chromate conversion coating and chromic acid anodising pretreatments. The replacement of chromate based treatments with more environmentally compliant processes and materials has been identified as a high priority. The aim of this paper is to review the most recent developments in the application of common inorganic protection layers based on conversion coatings for Al alloys. The review lists and discusses the majority of conversion coatings, including those formed through anodisation, on Al alloys as potential replacements to the most widely used treatments based on chromate chemistry.
引用
收藏
页码:176 / 203
页数:28
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