The development trend of aviation titanium alloy

With the rapid development of aviation science and technology, in the face of increasing requirements for national defense construction, a new generation of aircraft must meet the requirements of ultra-high speed, high altitude, long endurance, and ultra-long range. In order to improve the reliability of aircraft, advanced aircraft and engines have increasingly increased the amount of high-performance materials such as titanium alloys, and their structures have become more and more complex. Therefore, aerospace titanium alloys will develop towards low-cost and high-performance, and at the same time continue to carry out independent research and development of new grades and the development of new processes.

Research on Strengthening Low Cost Aviation Gr23 Ti-6Al-4V ELI Titanium Sheet

The aviation industry’s requirements for materials pay more attention to the balance of performance and cost, and no longer blindly pursue high performance. Low cost will run through the entire life cycle of products such as material selection, structural design, manufacturing technology, testing and evaluation, and maintenance, reducing the cost of titanium alloys. It is the inevitable trend of industry development. Substituting ordinary Fe elements for expensive elements such as Nb, Mo, and V, and vigorously developing near-net forming technology will become the two key directions for reducing the cost of aerospace titanium alloy engineering applications.

Research on Strengthening High Performance Aerospace Titanium Alloy

Although titanium alloys have good comprehensive properties, the existing aviation titanium alloys still cannot fully meet the high-performance requirements of the aviation industry. At present, it is difficult for high-temperature Gr9 Ti-3Al-2.5V Titanium Bar to exceed 600°C in actual long-term use. The research on aviation titanium alloys above 600°C is still in the experimental and pilot stage, and there is still a long way to go to large-scale development and application. In addition, the batch stability research and application of flame-retardant titanium alloys, high-strength, high-toughness and damage-tolerant titanium alloys have become the focus of attention of many scholars. In the future, research on high-performance aviation titanium alloys will tend to dig deeper into existing alloys and develop research on new grades of alloys at the same time.