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                Performance and application of TC4 titanium alloy material

                Titanium alloy TC4 is composed of Ti-6Al-4V and belongs to (α+β) type titanium alloy, which has good comprehensive mechanical and mechanical properties. Greater than the intensity. The strength of TC4 sb=1.012GPa, density G =4.4*103, specific strength sb/g=23.5, while the specific strength sb/g of alloy steel is less than 18. Titanium alloys have low thermal conductivity. The thermal conductivity of titanium alloy is 1/5 of that of iron and 1/10 of that of aluminum, and 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, which have been successfully applied in aerospace, petrochemical, shipbuilding, automobile, medicine and other departments.

                2) TC4 titanium alloy mechanical properties:

                Sigma b / 895 MPa or greater tensile strength, of specified residual elongation stress in the sigma r0.2 / MPa or greater 825, 5 (%) of 10 or higher elongation delta, reduction of area bits (%) of 25 or higher

                3) Chemical composition of TC4 titanium alloy:

                Allowance for TC4 titanium (Ti), iron (Fe) 0.30, or less carbon (C) 0.10, or less nitrogen (N) 0.05 or less, hydrogen (H), 0.015 or less oxygen (O) of 0.20 or less, aluminum (Al) 5.5 ~ 6.8, vanadium (V) 3.5 ~ 4.5


                Because of its good comprehensive performance and excellent corrosion resistance, industrial pure titanium has become an indispensable structural material in many industrial parts. As biological implant material, it has been widely used in clinic since 1960s. Titanium is the most promising bioengineering material in stainless steel, cobalt-chromium-molybdenum alloy and titanium implants because of its good biocompatibility and its density and elasticity close to human bone and non-magnetic properties. The application of titanium has solved many important engineering and technical problems, promoted the progress of science and technology, and brought obvious economic benefits, and the excellent performance and huge potential of titanium, and showed a broader prospect of its application.