Titanium alloy is widely used in the medical field due to its excellent biocompatibility, strong corrosion resistance, and lightweight properties. It is commonly applied in orthopedic and dental implants.

1. ‌Superior Biocompatibility‌
   The oxide film (titanium dioxide) formed on titanium alloy surfaces effectively isolates metal ion release, reducing human rejection reactions. Studies show titanium's compatibility with human tissues far exceeds traditional metals like stainless steel, making it ideal for long-term implants such as artificial joints and cardiac stents.

2. ‌Outstanding Corrosion Resistance‌
   In the highly corrosive environment of bodily fluids, titanium alloy maintains long-term stability, preventing inflammation or implant failure caused by material corrosion. Experimental data indicate a corrosion rate below 0.01 mm over 10 years in simulated bodily fluids.

3. ‌Human Bone-Matched Mechanical Properties‌

• ‌Elastic modulus close to bone‌: Titanium alloy (~110 GPa) has an elastic modulus closer to human bone (10-30 GPa) than stainless steel, reducing "stress shielding" and promoting natural bone healing.

• ‌High strength with lightweight‌: With 60% the density of steel yet equivalent strength, it is ideal for load-bearing implants (e.g., hip joints), minimizing patient burden.

1. ‌Low Allergenic Potential‌
   Unlike nickel- or cobalt-containing alloys, titanium alloys rarely trigger allergic reactions. Clinical statistics show titanium implant allergy rates below 0.6%, significantly lower than traditional alloys (3-5%).

2. ‌Enhanced Osseointegration‌
   Surface treatments like sandblasting or acid etching create microporous structures on titanium alloys, facilitating osteoblast attachment. Research confirms treated titanium implants achieve >95% bone integration rates, 30% higher than smooth surfaces.

3. ‌MRI Compatibility‌
   Titanium alloys are non-magnetic, allowing patients to undergo MRI scans safely. Ferromagnetic metal implants may cause device interference or displacement risks.

4. ‌Long-Term Reliability‌
   Clinical trials demonstrate titanium alloy joint prostheses with >90% 15-year survival rates and dental implants with >95% 10-year success rates, outperforming other materials.