Corrosion study of self-healing Titana- Benzotriazole nano structured coating applied on the 7075 aluminum alloy by sol-gel method

Nowadays, good adhesion and healing abilities of self healing coatings cause to these coatings are one of the most conventional methods to repair and corrosion protection of materials. The hybrid self healing coating plays an important role in corrosion protection of materials against kinds of all corrosion. In this paper, Titania- Benzotriazole nanostructured coating applied by sol-gel process with using immersion methods on Aluminum alloys 7075. Then structure and morphology and also corrosion behavior of coatings are investigated by using field emission scanning electron microscopy (FE-SEM) and electrochemical impedance analyses, respectively. The results represent the creation of a homogeneous, uniform and crack free coating on Al 7075, cause to improved corrosion resistance in 3.5% NaCl solution.