Ti anodize Type 2

[JoeBusic]

Any experience here? About to dive in testing what I have gathered up to now and it's very almost nothing. Proprietary stuff. But, maybe someone has an idea.
It's the boring grey stuff that hardens the surface, not thin coloring stuff.

 

[JoeBusic]

So I did my own testing. Tried to logic out what they are hiding. To avoid oxidation, anodizing has to be in an alkali bath min PH 13. I'm at 13.5. Current has to be high. I got max 6A from my psu and it needs more. Probably for a knife more than 20A. Mixer is a must. Attached the semi success. Needs more testing.
Surface is great. Weird a little. Although it didn't polish anything, it's like satin. Theory says the surface is harder, nicer and is more stainless than normal Ti.

 

[JoeBusic]

One more thing I noticed. When coloring, colors are way more pronounced than in an acid bath.

 

[JoeBusic]

And to finish this. V has to be ramped from 0V slowly and holding A above 1A. It can be done with low A. When max V on the PSU and A drops below 0.5A there is no use to continue. Rinse and clean the surface with Scotch. What is remained is a light gray semi shiny hard surface. 63HRC knife didn't scratch it as seen above my finger. Me happy. This one was a tester and the surface is total crap. Next is coloring tests.

P.S. surface is uniform no mater the microstructure. This one has a combo alpha martensite and beta Ti in zones, almost like a hamon.