|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Surface Engineering for Improved Corrosion Resistance
||Effect of Voltage and Charge Densities on Nanoporous Oxide Pore Diameter on AA1050
||Mustafa Kocabas, Michele Curioni, Nurhan Cansever
|On-Site Speaker (Planned)
The first aim of this work is to investigate the effect of applied voltage and charge densities on the nanoporous oxide pore diameter on electropolished AA1050. For this respect, anodic oxidation which is generally used to increase corrosion resistance was performed in 2M sulfuric acid solution at three different voltage values (12,15 and 18V) and charge densities (757,3231,6848mC/cm2). The corresponding times for anodizing were approximately 47,181 and 383sec, respectively. As a result of these treatments, oxide layers in porous structure were obtained at 411, 1751 and 3753nm thicknesses. Statistical analyses were carried out with respect to the oxide pore diameters obtained by using surface FESEM micrographs. Conventional current density-time graphs were obtained under all experimental conditions. The second purpose is to create suitable substrate for electroless nickel coating. Clearly, the electroless nickel coating formed on porous anodic film possessed much higher adhesion than those of directly deposited on Al alloy.
||Planned: Supplemental Proceedings volume