The chemical industry widely uses titanium-iridium alloy to make electrolysis anodes. Its iridium coating shows extremely low corrosion rates (below 0.003mm/year) in 80°C hydrochloric acid and chlorine environments, outperforming traditional titanium electrodes. In aerospace, titanium-iridium components handle extreme conditions: rocket engine nozzle linings withstand 1800°C high-temperature gas erosion, while adding 15% rhenium boosts creep resistance to 4.7 times that of pure titanium, ensuring stability in liquid oxygen/kerosene combustion chambers. For energy applications, proton exchange membrane (PEM) electrolyzers adopt titanium-iridium bipolar plates. Their nano-structured catalytic layer reduces oxygen evolution overpotential to 280mV, increasing hydrogen production efficiency by 22%.
Dongsheng has been deeply involved in precious metal recycling for more than ten years. Very knowledgeable about precious metal alloys.
Orthopedic fields use 3D printing to customize titanium-iridium implants. Xi’an Sailong (China) employs electron beam melting to create spinal fusion cages with 75% porosity, accelerating bone cell growth by 40% compared to traditional titanium while reducing post-surgery infection rates to 0.8%. In neuro-interventional devices, titanium-iridium microelectrodes leverage iridium’s conductivity and titanium’s biocompatibility to collect deep-brain electrical signals in Parkinson’s patients with 0.1mV precision. For cardiovascular stents, titanium-iridium covered stents use graded annealing to control radial support force at 150-220kPa—preventing vascular damage while suppressing tissue overgrowth, lowering restenosis rates below 5%.
Baoji Titanium-Zirconium Metal Technology applies vacuum arc melting-hot rolling processes to control iridium segregation below 0.5%, increasing plate yield to 92%. For circular economy, DONGSHENG established a closed-loop recycling system for titanium-iridium scrap. Their hydrochloric acid-sodium chlorate leaching process achieves 99.2% iridium recovery, with recycled materials projected to reach 30% by 2025. Global production scales up as Heeger Materials launches a new 50-ton/year titanium-iridium alloy line to meet aircraft engine blade demands. Learn more about iridium alloys on our Shipbuilding Solutions page.
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