The UNS code R56400 for the alpha-beta ti64 titanium also referred to as TC4, Ti64, or ASTM Grade 5, has a high specific strength and exceptional corrosion resistance. One of the most widely used titanium alloys, it is used in many fields, including the aerospace industry and biomechanical applications, where low density and high corrosion resistance are necessary (implants and prostheses).

Because they have a lower modulus, are more biocompatible, and have corrosion resistance than stainless steel and cobalt-based alloys, titanium alloys are being employed more frequently in biomedical applications. These desirable characteristics had an impact on the creation of new Ti-alloy compositions, orthopedic metastable b titanium alloys, the early introduction of a (PTI), and Ti—6Al—4V alloys. The latter has a lower elastic modulus, higher biocompatibility, and superior strain-controlled and notch fatigue resistance. However, the use of titanium alloys in biomedicine has constrained by their poor wear resistance and shear strength. Nevertheless, as compared to other alloys, b-Ti alloys have made some progress in terms of wear resistance.

Like the majority of titanium alloys and grades, the titanium alloy Ti-6%Al-4%V has outstanding corrosion resistance in the majority of natural and many industrial process conditions. Its density, which ranges between 4.0 and 4.2 g/cm3, is even lower than that of pure titanium. Numerous welding techniques are possible, and it is easily forgeable or manufactured.

Ti-6%Al-4%V is the name of an alpha+beta alloy made of 6% aluminum and 4% vanadium. Aluminum lowers the alloy's density while raising the temperature at which the beta-transition takes place by enhancing and stabilizing the alpha phase. Vanadium is a beta stabilizer, thus when it is heated, more of the ductile beta phase is created.

After treatment in a strong alpha+beta field and quick cooling to room temperature, the beta phase transforms into a structure that may be tempered to a fine beta dispersion in an alpha matrix, strengthening the alloy.

The titanium alloy Ti-6%Al-4%V comes in three different forms: hot-worked rod, bar, and billet for further processing, annealed rod and bar for machining, and plate and sheet that have been annealed. Fasteners can be made from heat-treatable rods and bard-drawn wires. A company can create pipes from plates and weld them together, or they can offer pipes as extrusions. Rolling, shaping, and extrusion can all be utilized to create more complex pieces.

Grades of Ti-Alloy with a very low interstitial content may be made available for specific applications that demand a level of ductility, fracture toughness, or resistance to crack propagation in aqueous environments. The typical standards are AMS 4907 for sheet and strip, and AMS 4930 for bars, forgings, and rings.

Compared to many other titanium alloys, Ti-6%Al-4%V has a higher beta transit temperature, allowing for the utilization of a little higher forging temperature. It is advised to conduct at least a 4:1 decrease in the alpha+beta field and not to exceed 975°C during preheating and forging to get the optimal balance of strength and ductility in a final component. To avoid interior overheating caused by kinetic action during quick forging, it may be safer to use a preheating temperature of 950°C.

Higher temperatures could be acceptable in the early stages when working with large or challenging components or when heavy reductions are possible.