Introduction To Ti-6al-4v Materials

Introduction to ti-6al-4v materials

Ti-6 al-4v alloy is a typical two-phase titanium alloy developed in the United States in the 1950s.Excellent comprehensive performance and can be used for making temperature below 400 ° C in all kinds of parts.Among the aviation titanium in western developed countries, the amount of ti-6al-4v takes the lead, accounting for about 50% of the amount of titanium alloy.Mainly used in the manufacture of aircraft components and engine parts.For example, each Boeing 747 needs about 40 tons.The ti-6al-4v alloy is used to make all kinds of parts, and its mainframe ginger-beam forgings are 6.1 meters long and 1.7 tons in weight.

In the late 1950s and early 1960s, China began to research and trial production of Ti-6Al-4V alloy.It was named TC4 alloy in 1970.The relationship between microstructure and properties of TC4 titanium alloy blank composition production process has been studied for many years, and various sizes of bars and forgings have been produced for making compressor disks and blades on aero-engines, which have passed long ground test and ground examination.

With the development of the aviation industry, there is an increasing demand for large specifications of ti-6al-4v bar materials, which requires solving the problems of metallographic structure, transverse performance and ultrasonic testing, etc. to achieve the expected goals.The key to solve these problems lies in the smelting and forging of ingots.If upsetting or transverse forging is used, the permeability of forging should be ensured so that the coarse structure can be fully broken.