Title:
 Hard Coating Treatment of Aluminum Alloys
Teflon-Impregnated or Codeposited
Number:
 AMS 2482
Revision:
 C
Scope:
 This specification establishes the engineering requirements for producing a hard Teflon-impregnated or codeposited Teflon-aluminum oxide coating on aluminum alloys and properties of such coatings. This process has been used typically to increase, by formation of a dense, Teflon-impregnated aluminum oxide or codeposited Teflon-aluminum oxide layer, surface hardness and resistance to abrasion and corrosion of aluminum alloy parts containing, in general less than 5% copper or 8% silicon or a total of 8% of both. 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.
   
Classification:
  
Types
The processes covered by this specification are classified as follows:
   
Details Description Can Do
Type 1 Teflon-impregnated aluminum oxide Yes
Type 2 Codeposited Teflon and aluminum oxide. No
 
Status:
 Active