Several chromate-free passivation methods for aluminium alloy, which consist of molybdatein passivation, zirconate passivation, titanium salt passivation and rare earths passivation, were summarized.

• 针对国内外几种铝合金无铬钝化处理工艺，包括钼酸盐钝化、含锆溶液钝化、含钛溶液钝化、稀土钝化等工艺的特点及其发展现状进行了详细的阐述。