Just curious to what temperature vapors tolerate titanium pieces in DIY or daily use designs.
At some point, Ti oxides become an issue.
What should an air-path titanium part temperature limit be?
Researching heat sources.
Verbose thoughts welcome.
"This metal forms a passive and protective oxide coating (leading to corrosion-resistance) when exposed to elevated temperatures in air but at room temperatures it resists tarnishing. The metal, which burns when heated in air 610 °C or higher (forming titanium dioxide) is also one of the few elements that burns in pure nitrogen gas (it burns at 800 °C and forms titanium nitride)."
https://www.berkeleypoint.com/learning/titanium.html
Like
aluminium and
magnesium, titanium metal and its alloys
oxidize immediately upon exposure to air. Titanium readily reacts with oxygen at 1,200 °C (2,190 °F) in air, and at 610 °C (1,130 °F) in pure oxygen, forming
titanium dioxide.
[10] It is, however, slow to react with water and air at ambient temperatures because it forms a
passive oxide coating that protects the bulk metal from further oxidation.
[5] When it first forms, this protective layer is only 1–2
nm thick but continues to grow slowly; reaching a thickness of 25 nm in four years.
[18]
https://en.wikipedia.org/wiki/Titanium#Chemical_properties
Health effects of titanium
There is no known biological role for titanium. There is a detectable amount of titanium in the human body and it has been estimated that we take in about 0.8 mg/day, but most passes through us without being adsorbed. It is not a poison metal and the human body can tolerate titanium in large dose.
Elemental titanium and titanium dioxide is of a low order of toxicity. Laboratory animals (rats) exposed to titanium dioxide via inhalation have developed small-localized areas of dark-colored dust deposits in the lungs. Excessive exposure in humans may result in slight changes in the lungs.
Effects of overexposure to titanium powder: Dust inhalation may cause tightness and pain in chest, coughing, and difficulty in breathing. Contact with skin or eyes may cause irritation. Routes of entry: Inhalation, skin contact, eye contact.
Carcinogenicity: The International Agency for Research on Cancer (IARC) has listed titanium dioxide within Group 3 (The agent is not classifiable as to its carcinogenicity to humans.)
Read more:
https://www.lenntech.com/periodic/elements/ti.htm#ixzz629d3KP1k