Performance and uses of titanium alloy materials such as medical titanium rods.

The composition of titanium alloy TC4 material is Ti-6Al-4V, which belongs to (α+β) type titanium alloy and has good comprehensive mechanical and mechanical properties. Greater than strength. The strength of TC4 is sb=1.012GPa, the density is g=4.4*103, and the specific strength is sb/g=23.5, while the specific strength of alloy steel is less than 18. Titanium alloy has low thermal conductivity. The thermal conductivity of titanium alloy is 1/5 of iron and 1/10 of aluminum. The thermal conductivity of TC4 is l=7.955W/m·K.

1) TC4 thermal expansion coefficient:

Medical titanium has a series of advantages such as good corrosion resistance, small density, high specific strength, good toughness, and weldability, and has been successfully used in aerospace, petrochemical, shipbuilding, automobile, medicine, and other sectors.

2) Mechanical properties of TC4 titanium alloy:

Tensile strength σb/MPa≥895, specified residual elongation stress σr0.2/MPa≥825, elongation δ5(%)≥10, area shrinkage ψ(%)≥25

3) Chemical composition of TC4 titanium alloy:

TC4 contains titanium (Ti) balance, iron (Fe) ≤ 0.30, carbon (C) ≤ 0.10, nitrogen (N) ≤ 0.05, hydrogen (H) ≤ 0.015, oxygen (O) ≤ 0.20, aluminum (Al) 5.5～ 6.8, vanadium (V) 3.5～4.5

Use:

Because industrial pure titanium has good comprehensive properties and good corrosion resistance, it has become an indispensable structural material for many industrial parts. As a biological implant material, it has been widely used clinically since the 1960s. Among all commonly used implant metal materials, titanium has good biocompatibility, and because its density and elasticity are close to human bone and non-magnetic, among the three major metal implant materials: stainless steel, cobalt-chromium-molybdenum alloy, and titanium, titanium is a promising bioengineering material. The application of titanium has solved many major engineering and technical problems, promoted scientific and technological progress, and brought obvious economic benefits. The good performance and huge potential of titanium have also demonstrated a broader prospect for its application.