| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2025
|
| Presentation Title |
Comparative Studies on Corrosion of Short Fibre-Reinforced Mg Composites with and without PEO Coatings |
| Author(s) |
Hongfa Hu |
| On-Site Speaker (Planned) |
Hongfa Hu |
| Abstract Scope |
Plasma electrolytic oxidation (PEO) coating was applied on the surfaces of AM60 (PEO-AM60) and 7 vol% Al2O3 fibers/AM60 (PEO-7FC) to improve their corrosion resistances. The SEM and EDS analyses indicated the PEO coating process formed a porous and dense layer on the substrate surface, and MgAl2O4 was the major concentration of the coating. The thickness of PEO coating on the 7FC composite was slightly less than that of the coating on the AM60. Corrosion tests were performed in 3.5% NaCl solution to investigate corrosion behavior of the materials. The PEO coating increased the corrosion resistances of the AM60 alloy and the 7FC composite to 342.81 and 301.73 from 4.07 and 2.08 kΩ•cm2. By comparing the corrosion test results of the coated AM60 and the composites with those of the uncoated counterparts, it was found that the PEO coating significantly improved the corrosion resistances by up to 154 times. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Surface Modification and Coatings, Composites |