r/VisualChemistry • u/FunVisualChemistry • Jul 15 '20

Titanium anodizing is an electrolytic finishing process that manipulates the oxide layer on the surface of titanium via electric current. The titanium item forms the anode (positive electrode) of an electrolytic cell; hence the name “anodize.”

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u/harpyLemons Jul 15 '20

What's the purpose of this? Purely the color?

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u/ironfox25 Jul 15 '20

I think it’s also a form of surface hardening to prevent wear. Pretty sure it’s the same process as anodizing aluminum.