What are the mainstream surface treatment technologies for titanium alloys?

Common surface treatments include anodizing to form thickened protective oxide films for improved wear and corrosion resistance, sandblasting to smooth casting surface defects, and thermal spraying to add wear-resistant coatings. Micro-arc oxidation further upgrades surface hardness for friction-intensive components. Chemical polishing achieves mirror finish for medical and decorative parts. Proper surface treatment optimizes surface performance while retaining the substrate’s core lightweight and high-strength advantages for different usage requirements.