Titanium Anodized Layer
Titanium anodized coating is an oxide layer created electrochemically on titanium that improves wear resistance and biocompatibility and provides optical effects.
Physical-Chemical Mechanism of Action
Titanium anodized layer forms through the anodizing process, where titanium is electrified in an electrolyte (e.g., sulfuric acid). This leads to the formation of a dense oxide layer on the surface of the titanium material.
Metallurgical Relevance & Welding Risks
The anodized layer increases wear resistance and improves the biocompatible properties of titanium. If mishandled during welding, the layer can be destroyed, reducing wear protection. It is important to protect the material before welding or re-anodize after welding.
Shop Practice & Action Items
Before welding titanium, the anodized layer should be removed to ensure a clean joint. After welding, the surface can be re-anodized by electrifying it in an electrolyte system for 15-30 minutes.