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Wear Resistance Test on Adhesion per AMS 2488 on Titanium Type 1 and 2 Anodizing

June 2, 2009

Can your facility perform a Wear Resistance Test per AMS 2488?

Test Specimen Defined:
6AI-4V Annealed Titanium Ring IAW AMS 4928

Ring will be Titanium anodized as (Type 2) per AMS 2488D.

Ring will also be coated with dry lube to a film thickness 0.0003 to 0.0005. per MIL-L-46010/MIL-PRF-46010 [from DLA] Type I

Actual Test Defined (AMS 2488D):

4.5.1 Wear Resistance:
4.5.1 Equipment: A block-on ring test machine calibrated and operated in accordance with ASTM D2714
4.5.1.2 Procedure: Mount an anodized and dry-film lubricated AMS4928 (titanium 6AL-4V) test ring on the block-on-ring test machine according to manufactures instructions. Place sufficient weight on the bale rod to achieve 630 pounds normal force (2802 N) when load is applied. Start the machine. After one minute, gently apply load lever to the system. Terminate the test when coefficient of friction equals 0.20. Repeat the room temperature test twice using anodized and lubricated test blocks and rings in each test. The average of test results shall not be less than 75,000 cycles.

Anna Berkovich - Pittsburgh, Pennsylvania