Introduction of TA18 Titanium Alloy

TA18(TI-3Al-2.5 V) is a nearly α titanium alloy developed in the United States in the late 1960s. It was developed for the application of aircraft pipeline pressurization system in the early stage. It not only has good chamber, high temperature mechanical properties and corrosion resistance, but also has excellent cold and hot processing process plasticity, formability and weldability; In addition, it is insensitive to the notch and has a good match with the strength and stiffness of the composite material, which can further achieve a good weight reduction effect. Therefore, TA18 titanium alloy can be used to manufacture working temperature up to 315 ℃, and has a certain strength and oxidation resistance requirements of the parts, such as TA18 titanium alloy seamless tube in aerospace for aircraft and engines on the high pressure, light hydraulic and fuel pipeline system.

TA18 titanium alloy pipe has been widely used in aerospace industry for its excellent comprehensive properties. The preparation technology and application of TA18 titanium alloy pipe are advanced in the developed countries led by the United States. In recent years, with the development of China's aviation industry, the demand for high-strength TA18 titanium alloy pipe is becoming more and more urgent. On the basis of the development of medium-strength TA18 titanium alloy pipe, the key technology of high-strength TA18 titanium alloy pipe has been solved. Through the research in recent years, the development of TA18 titanium alloy pipe has achieved stage results. It is expected to be used in domestic aircraft in 2-3 years.

TA18 titanium alloy is widely used as a kind of titanium alloy. The nature of this titanium alloy belongs to low alloying, and its essence is close to α titanium alloy. Compared with other types of titanium alloy, this kind of titanium alloy has a good room temperature. Secondly, excellent performance, especially high temperature mechanical properties, can withstand extremely high temperature, in addition, its corrosion resistance is also more outstanding; Finally, TA18 titanium alloy can not only be cold processing, but also be hot processing, no matter which way of processing is conducive to welding, it is because of this, this titanium alloy as an indispensable pipeline system material in the field is widely used in the aerospace field.