1. Light weight; 2. Low elastic modulus; 3. No magnetism; 4. Non-toxicity; 5. Corrosion resistance; 6. High strength and good toughness.
Titanium and titanium alloys have excellent use characteristics and are recognized as excellent metal materials in the biomedical field by the world. Compared with the use of stainless steel, cobalt-based alloys and other metal materials, titanium and titanium alloys have great application advantages and great development space.
According to relevant data, the use of metal materials as human implants is gradually increasing. After 1990, only the United States has used more than 2 million metal parts for human implantation every year, of which the medullary joints and femoral parts account for 2.5%; The supply and demand of fracture external fixation products and internal fixation products are booming in the European market, mainly in France, Germany, Italy and the United Kingdom. In 2004, the market value reached US $280 million, of which the internal fixation products accounted for 85.7%. In the past 10 years, the market growth rate of biomedical materials and products has been maintained at 20% - 25%. It is predicted that in the next 10 to 15 years, the industrialization of medical devices, including biomedical materials, will develop rapidly, and will reach economies of scale and become a pillar industry of the world economy.
The advantages of medical titanium and titanium alloy materials have been recognized by the medical community and accepted by more and more patients. Considering the factors of war, sports trauma and the improvement of people's living standards, the first choice of titanium and titanium alloy as human implants has a large growth space, which is bound to become a new economic growth point in the development of titanium applications.