About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Processing and Characterization
|
Presentation Title |
NOW ON-DEMAND ONLY – Effect of Homogenization on Anodic Film and Electrochemical Behavior of an A535 Alloy after Sealing with Stearic Sealant |
Author(s) |
Suwaree Chankitmunkong, Dmitry G. Eskin, Chaowalit Limmaneevichitr, Phromphong Pandee, Nattarat Kengkla, Jirakit Athchasiri, Tanawat Tanawansombat, Napadol Parnlasarn, Onnjira Diewwanit |
On-Site Speaker (Planned) |
Suwaree Chankitmunkong |
Abstract Scope |
Almag 35 (A535) is a commercial aluminum alloy intended for a number of marine components, which is mainly justified by its excellent castability and corrosion resistance. However, the most important factor for corrosion resistance is the formation of intermetallics that can lead the defects in the oxide film and substrate, as well as activate the corrosion reaction. The characteristics of a sealant on the anodic film was investigated in this work. The alloy was subjected to homogenization at 400 oC for 5 h to improve the uniformity of the anodic oxide film due to the decreased number of intermetallics as a result of dissolving in the matrix. It also improved the hardness of this alloy. Electrochemical measurements were conducted to investigate the corrosion behavior. The effects of intermetallics and stearic sealing on characteristics of the oxide layer are discussed. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Process Technology, Surface Modification and Coatings |