How about this article- Titanium wires for vaping
Thank you Exceller, I know that article. Stealth vape is an excellent company. This article contains a number of interesting observations, quotes and opinions/views, including from Dr. Farsalinos. And they correctly state it's just that. They do not claim to have all the wisdom, don't drop unproven/unsupported statements etc. Very good (many others could learn from this).
The information is mainly about Ti oxidation and Ti Dioxide, the later is used in some liquids but both are closely related to the use of Ti wires for coils.
While this is also not a conclusive article or research by any means, it's a must read nonetheless imo.