CORROSION PROTECTION SYSTEM FOR BERYLLIUM IN AIRCRAFT BRAKE APPLICATIONS

The corrosion resistance of Glidden's Glid-Guard Silicone Hi-Temp Primer paint and the protection afforded to the beryllium substrate in salt-water environments is excellent and the primer (and perhaps other similar paints) should be a viable coating for use on beryllium brakes in aircraft applications. Manganese is anodic to beryllium in 5% salt fog, 3.5% NaCl solution, and in Cleveland tap water. The electroplating of manganese onto the 4130 steel carrier plates (for sintered iron friction pads) appears to be a viable approach to eliminate the pitting-type galvanic corrosion observed on some F-14 brakes. Other materials in contact with the beryllium (such as titanium) presumably could also be plated with manganese. The managanese plate has little effect on the mechanical properties of the steel substrate, even after a thermal treatment of 1 hour at 982 degree C.

• Supplemental Notes:
  • Corrosion 77, Intl Corrosion Forum Devoted Exclusively to the Protection and Performance of Materials, San Francisco, Calfornia, March 14-18, 1977.
• Corporate Authors:

  National Association of Corrosion Engineers

  P.O. Box 1499
  Houston, TX  United States  77001
• Authors:
  • Paine, R M
  • Stonehouse, A J
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: 26 p.

Subject/Index Terms

• TRT Terms: Aircraft; Applications; Beryllium; Brakes; Corrosion protection; Corrosion resistance; Manganese; Paint; Protective coatings; Silicones; Weatherproofing
• Old TRIS Terms: Beryllium and alloys; Silicone coatings
• Subject Areas: Aviation; Research; Vehicles and Equipment;

Filing Info

• Accession Number: 00174316
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Paper 26 Proceeding
• Files: TRIS
• Created Date: Jun 28 1978 12:00AM