Medical titanium

Medical titanium alloy titanium implants in the human body for medical devices, artificial organs and prostheses or adjuvant therapy equipment. There titanium 6 aluminum 4 vanadium, titanium, aluminum 5 2.5 Sn, ELI titanium 6 aluminum 4 vanadium alloy. They have high specific strength and mechanical properties close to human bone strength is far superior to titanium, also resistant to fatigue, excellent corrosion resistance and biocompatibility characteristics.

A density of 4.506-4.516 g of buy titanium sheet / cm (20 ℃), but lower than the higher iron aluminum, copper, nickel. However, the intensity ratio of the first metal is located, is three times the stainless steel is aluminum [colored leads: ADC12 aluminum alloy ingot] of 1.3 times. Melting point of 1668 ± 4 ℃, latent heat of fusion 3.7-5.0 kcal / gram atom, boiling point 3260 ± 20 ℃, latent heat of vaporization 102.5-112.5 kcal / gram atom, the critical temperature 4350 ℃, the critical pressure of 1130 atmospheres. Thermal conductivity of titanium and poor, similar or slightly lower than stainless steel, titanium superconducting, the superconducting critical temperature of pure titanium 0.38-0.4K. At 25 ℃, titanium heat capacity of 0.126 cal / g · atom degrees enthalpy 1149 cal / g atom, the entropy of 7.33 cal / g · atom degrees, titanium bar supplier is paramagnetic, permeability of 1.00004. Titanium has plasticity, high elongation up to 50-60% titanium, reduction rate of 70-80%, but lower intensity, not as a structural material. The presence of impurities in titanium, a great influence on the mechanical properties, in particular interstitial impurities (oxygen, nitrogen, carbon) can greatly increase the strength of titanium, significantly reducing its ductility. Titanium as a structural material having excellent mechanical properties, which is strictly controlled and adding an appropriate amount of impurities and alloying elements to achieve.