The composition of the 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 specific strength. The strength sb of TC4 = 1.012GPa, the density g = 4.4 * 103, the specific strength sb / g = 23.5, and the specific strength sb / g 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:

TC4 titanium alloy has a series of advantages such as excellent corrosion resistance, small density, high specific strength and good toughness and weldability. It has been successfully applied in aerospace, petrochemical, shipbuilding, automotive, pharmaceutical and other sectors. .

2) Mechanical properties of TC4 titanium alloy:

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

3) Chemical composition of TC4 titanium alloy:

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

Use

Because industrial pure titanium has better comprehensive properties and excellent 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 the commonly used implanted metal materials, titanium has good biocompatibility, and because its density and elasticity are close to that of human bones, and it is non-magnetic, titanium is used in the three major metal implant materials of stainless steel, cobalt chromium molybdenum alloy and titanium. It is one of the most promising biological engineering materials. The application of titanium has solved many major engineering and technical problems, promoted scientific and technological progress, and brought obvious economic benefits. The excellent performance and huge potential of titanium have also shown its wider application prospects.