Some people in life will ask, after the titanium anode oxidation color, wipe will change, what can I do to stabilize its color? Let's first look at the principle of titanium anodization.
The principle of anodic oxidation of titanium is to use titanium as the anode, stainless steel, and other metals as the cathode, with the help of certain electrolytes, to promote the oxidation reaction on the surface of titanium alloy to form an oxide film. It is an ideal decorative and wear-resistant layer because it reflects and refracts the light very well, and oxides of different thicknesses show different colors and are protective at the same time.
In principle, if one side profile is viewed, the Titanium Anodized Oxide film is actually colorless, and the color can be seen because of the interference of light reflected twice on the surface and inside of the film, the different wavelengths of the interference light show different colors. In other words, different thickness of the film results in different wavelengths and colors of the interfering light.
It is said that the rubbing discoloration occurs because sweat or water vapor on the hand changes the thickness of the membrane, resulting in a change in the interference wavelength and therefore discoloration. To protect it, either by wearing gloves or by using a sealed liquid that is said to coat the surface, but as a medical profession, gloves are currently mainly used for protection without bare hands.
