Accession Number : ADD012203

Title :   Wear Improvement in Titanium Alloys by Ion Implantation.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Vardiman,Ronald G

Report Date : 04 Feb 1986

Pagination or Media Count : 5

Abstract : This invention relates to a method of making titanium alloy more resistant to sliding wear and fretting fatigue comprising the steps of: implanting carbon ions with at least one energy onto titantium alloy until at least 1 x 10 to the 17th power carbon ions/ sq. cm have fallen onto the titanium alloy, said energy level of carbon ions being implanted being greater than 10 KeV. A second method comprises an additional step of heating the implanted titanium alloy to between 300 C. and 500 c. for 0.5 hours to 2 hours. The second method has a lower number of carbon ions/sq. cm implanted onto the titanium.

Descriptors :   *PATENTS, *TITANIUM ALLOYS, *ION IMPLANTATION, *WEAR RESISTANCE, SLIDING, FRETTING, FATIGUE, CARBON, ENERGY, HEAT TREATMENT, LIFE EXPECTANCY(SERVICE LIFE)

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE