Hard Anodic Coating Treatment of Aluminum Alloys
- Aerospace Material Specification
- AMS2468D
- Reaffirmed
Scope
This specification establishes the engineering requirements for producing a hard coating on aluminum alloys and the properties of such coating.
This coating has been used typically to increase, by the formation of a dense aluminum oxide, surface hardness and resistance to abrasion and corrosion of aluminum-alloy parts containing, in general, less than 6% copper or 8% silicon or a total of 8% of both, but usage is not limited to such applications. Alloys with higher silicon content alone can be coated satisfactorily with proper precautions in processing. Careful consideration should be given to the use of this process on highly-stressed parts because of the resultant marked lowering of fatigue performance and on parts with sharp corners and edges where chipping may result.
Recommended Content
| Technical Paper | Fracture Mechanics Based Approach for Quantifying Corrosion Damage |
| Aerospace Material Specification | Aluminum Alloy, Extruded Profiles (6056-T4511) 1.0Si - 0.90Mg - 0.80Cu - 0.60Mn - 0.40Zn Solution Heat Treated and Stress-Relieved by Stretching |
| Aerospace Material Specification | Physical Vapor Deposition of Metals: Physical Vapor Deposition of Aluminum for Protection Against Corrosion |
Data Sets - Support Documents
Issuing Committee
AMS B Finishes Processes and Fluids Committee
The committee of Finishes, Processes, and Fluids, AMS Committee B, shall prepare, coordinate, and revise documents related to processing technology, such as plating, brazing, coatings and compounds, through the participation of process suppliers, users, and interested government agencies. Committee activities shall provide a forum for the cooperative interchange of ideas and experience of the participants, resulting in the publication of specifications that embody sound, established aerospace industry practices and requirements to serve the suppliers and customers of aerospace processes.
Reference
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