|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||I-8: Study on the Anodic Oxide Film Formation on Die Casting Aluminum Alloy
||Juseok Kim, Jongmoon Park, Sungmo Moon, Minsu Park, Nojin Park, Myunghoon Oh
|On-Site Speaker (Planned)
Formations of anodic oxide films on Al alloys are crucially dependent on composition of alloying element. Si in die-casting alloy can’t contribute to the oxygen gas evolution and dissolution, and Si particles present in die-casting alloy decrease the area where anodic oxide film can grow. Growth of anodic oxide films on die casting Al is non-uniform because of Si particles. In this work, in order to understand the anodic oxide film growth behavior of die-casting Al alloy, Al1050 alloy and aluminum die-casting alloy for smartphone case were anodized at constant voltage and current density conditions in acidic and alkaline solutions. The behavior of formation voltages of Al1050 and die-casting alloy were recorded with treatment time, and the film thickness, surface roughness were measured. The presence of Si particles in Al alloy appeared to increase the film formation voltage and induced non-uniform thickness of oxide films with a lot of cracks.
||Planned: Light Metals