I like the idea but don't know much about the Titanium
Nitride process -

George, the nitriding process on Ti is just like steel. 
Some of the steel end plates are nitrided by Mazda. The 
surface is changed on the molecular level. On Ti the process 
is super tough. The hardness is almost off the "C" scale around
95+. As I mantioned the material is the gold colored wear surface 
on many drills and end mills. The process is like anodizing 
aluminum but is much tougher and chip resistant. The Ti 
substrate is also stronger than Aluminum. Bill Jepson

 
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