This specification covers the engineering requirements for producing a carbon-oxygen-nitrogen-bearing case on titanium and titanium alloys by means of a liquid salt bath, and the properties of the case. This process has been used typically to increase the resistance to galling and wear of titanium and titanium alloys. This process is not recommended for use on alloys having an actual tin content greater than 3 percent.
SAE AMS2775B-2004 Referenced Document
ASTM E384-99 Standard Test Method for Microindentation Hardness of Materials