China Aerospace Day – Development of New Materials in China’s Aerospace Field

(1) Development trend of titanium and titanium alloy materials

Titanium alloy has become the most ideal structural material in the aviation industry because of its excellent performance characteristics. Judging from the development trend of materials used in aviation parts in developed countries, the aviation industry is the largest application field of titanium alloys. Titanium alloy materials with high specific strength and low density will remain one of the main materials in the aviation field for a long time . The rapid development of aviation technology has put forward higher requirements for the new generation of aviation aircraft: ultra-high speed, high altitude, long endurance, ultra-long range, etc. In addition, in order to improve the reliability of the aircraft, more and more titanium alloys, etc. Therefore, aerospace titanium alloys will develop in the direction of high performance and low cost. The current research hotspots mainly focus on the development of new titanium alloy materials, the development and application of welding and forming technology, as well as the additive manufacturing technology of complex components and low-cost manufacturing technology.

(2) The development trend of new composite materials

Composite materials have advantages far beyond traditional metal materials in terms of performance and function, and various composite materials are being used more and more widely in the aviation industry. New model requirements provide new impetus and opportunities for the development of advanced composite materials. The research and development of advanced composite materials is developing in the direction of higher comprehensive performance, process performance, low cost and green environmental protection. Among them, green composite materials, as a new member of the composite material family, have gained more and more attention. The green development of high-performance composite materials is essentially the use of green materials and the green manufacturing of materials.

All in all, driven by the rapid development of modern industry, the green development of aviation materials is an inevitable trend and an urgent requirement of economic development. Looking forward to the future, new aviation materials will develop in the direction of multi-purpose, high performance, new technology, low cost and new concept. With the improvement of the level of independent research and development in the field of new aviation materials in my country, we need to start from the aspects of material design, preparation process and technology, material development, and recycling technology to comprehensively improve the level of material green technology, so as to drive the continuous development of materials With breakthroughs, we will jointly create a bright future for green aviation.