Titanium vs. gold-titanium alloys – how to choose the right high-performance material for you?

Comparison of Titanium Alloys and Gold-Titanium Alloys
Index Titanium alloy Gold titanium alloy
Cost $50-100/kg (industrial grade) $3000-5000/kg
Strength 900-1200 MPa Comparable to titanium alloy, plating enhances surface hardness.
Temperature resistance Long-term use upper limit 600°C Plating may oxidize above 300°C
Difficulty of processing Specialized tools are required, easy to stick tools Vacuum sputtering equipment is required for the coating process.
Application scenarios Aerospace structural components, medical implants Luxury goods, high-end electronics, aerospace plating
Recommendations
Limited budget and high strength: choose titanium alloys (e.g. Ti-6Al-4V) for mechanical skeletons or deep sea equipment.

Pursuing both appearance and functionality: gold and titanium alloy plating is suitable for consumer-grade high-end products such as watches and customized cell phones.

Extreme environmental protection: In space or corrosive environments, titanium alloy base + gold-titanium plating is the ultimate solution.

Conclusion
Titanium alloys and gold-titanium alloys have their own advantages and disadvantages, and the choice needs to be based on the specific needs to weigh the performance and cost. As technology advances, these two materials will play an important role in more areas.