Titanium alloy, the metal bone implanted in the body

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Due to social progress and technological development, the market share of biomaterials has been increasing and is still growing at a fast pace. ASTM F136 Ti6Al4V ELI for surgical implants and hard tissue replacement materials such as artificial teeth, artificial joints, and artificial bones are taking up an increasing and rapidly growing share of the medical biomaterials sector.  

Titanium and titanium alloy materials are widely used in the nuclear industry, chemical, and petrochemical, aerospace, sporting goods, dental and medical prosthetics. Titanium alloy materials are also selected as the best materials for replacing or repairing failed hard tissues (structural biomedical applications). Pure titanium metal has excellent corrosion resistance, but it has poor biocompatibility and overall mechanical properties, relatively low strength, and is expensive to produce, which can be well replaced by the advent of titanium alloys.

Titanium alloy than stainless steel, industrial pure (CP) Nb, Cr-Co alloy and CP-Ta and other medical applications, more than the performance requirements, because its surface will form an oxide layer and produce excellent corrosion resistance and lower modulus of elasticity.

Medical titanium alloy is not only non-toxic, and lightweight, but also has a high specific strength, excellent biocompatibility, and corrosion resistance, can be used as implants in the human body, etc., is ideal for medical metal materials, and titanium in the earth's crust is very rich reserves, has the potential for further development, is the ideal and promising application of biomedical engineering materials.

At present, pure titanium (TA1, TA2; TA1 is pure titanium more than 99.6%, pure titanium less than 99.6 is TA2) and Ti-6Al-4V, Ti-5Al-2.5Fe, Ti-6Al-7Nb alloys used for surgical implants are more widely used in the medical field, but the new β-type titanium alloy with better biocompatibility and mechanical compatibility has become It is the most promising technology in the field of medical implants.

In the future, the production technology of titanium alloys will develop in the direction of low modulus and high strength, and from the development trend, β-type titanium alloys will become the direction of future development and the "leader" of the medical titanium alloy market.  

Now, our researchers have synthesized Ti-Zr alloy for dentistry with reference to the mechanical properties of Co-Cr alloy and Type IV alloy commonly used in clinical practice, which is expected to become a new titanium alloy for restoration in the oral cavity. In addition, our country also designed TAMZ type (Ti-Al-Mo-Zr, etc.) medical alloy by itself, which is more compatible and inexpensive, and suitable for making dental brackets and snap rings.

It is believed that with the development of science and technology, the research on ASTM F136 Ti6Al4V ELI For Surgical Implant and other titanium alloys will be more in-depth and thorough.