About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
|
Symposium
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12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
Effect of Cation Species in the Electrolyte on the Oxidized Film on the Anodizing of Mg-Li-Al Alloys |
Author(s) |
Yuka Ichigi, Taiki Morishige, Toshihide Takenaka |
On-Site Speaker (Planned) |
Yuka Ichigi |
Abstract Scope |
Mg-14mass%Li-3mass%Al (LA143) alloy has high corrosion resistance than previous Mg-Li alloys such as Mg-14mass%Li-1mass%Al (LA141). However, the corrosion properties of the alloy are not enough to apply for practical use without corrosion protection coatings. The anodization for Mg alloys is an effective technique to prevent metal surface from exposure to corrosion environment. Phosphoric acid-based solution containing metal cation are useful electrolyte to form thick oxide layer on Mg surface. In this study, the effect of cation species on the oxidized film was investigated.
The film formed by each electrolytic solution was mainly composed of Mg3(PO4)2, AlPO4, MgAl2O4, and the phosphate and oxide containing each additive element were slightly present. Particularly, in the electrolyte containing Ca, the dissolution of LA143 was suppressed about twice as much as other electrolyte, and the most uniform and thick film was formed. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |