About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Functional Nanomaterials 2024
|
Presentation Title |
Corrosion and Wear Behavior of Open-air Plasma Processed AM60 Mg Alloy with a Few Hundred Nanometer Thick Organosilicon Coating |
Author(s) |
Jiheon Jun, Yong Chae Lim, Chanaka Ihala Gamaralalage, Yi-Feng Su, Daphne Pappas, Ryan Robinson |
On-Site Speaker (Planned) |
Jiheon Jun |
Abstract Scope |
For improved energy efficiency, Mg alloys are recognized as a key material enabling further lightweighting of automobile structures. However, the inherent corrosion susceptibility of Mg alloys remains as a technical hurdle for their industrial application. This work utilized open-air plasma based surface cleaning and coating processes on AM60 Mg alloy samples to form organosilicon layers for corrosion and wear protection with thicknesses ranging between 200 and ~ 980 nm. Electrochemical impedance and polarization techniques along with hydrogen collection measurements were used to evaluate short- and long-term corrosion behavior in 3.5% NaCl solution. Wear-track tests were also performed to assess abrasion resistance of coated AM60 samples. Pre- and post-corrosion samples were characterized using SEM, STEM and EDS. The results indicate that plasma-coated organosilicon layers can significantly reduce corrosion and increase wear resistance for the AM60 substrate. Correlation of corrosion and wear resistance with the organosilicon layer thickness will also be reported. |
Proceedings Inclusion? |
Planned: |
Keywords |
Surface Modification and Coatings, Magnesium, Characterization |