New Progress Has Been Made In The Research And Development Of Titanium Alloy Foil, Reshaping New Aerospace Applications
New Progress Has Been Made In The Research And Development Of Titanium Alloy Foil, Reshaping New Aerospace Applications
In the field of aerospace materials, an important project on the development of high-temperature metal foils has recently made a significant technological breakthrough. The project is co-chaired by Chongqing Sanhang Institute of New Materials Technology Co., Ltd. and the Chongqing Science and Technology Innovation Center of Northwestern Polytechnical University New metal Materials and near-net forming Technology Team. It is a key XX project supported by the Chongqing Municipal Science and Technology Bureau in 2022--“Aerospace High Temperature metal foil Development and Application”.
The project mainly focuses on the preparation technology of high-temperature titanium alloy plates and foils such as Gr5(TC4) and Ti-2Al-Nb, and has successfully broken through the high-quality preparation and production technology of high-performance titanium alloy plates and foils. During the implementation of the project, the team closely integrated the actual needs of relevant application units in the aerospace field, and realized the deep integration and joint research of industry, university and research.
As an important material for lightweight, high-strength and high-temperature-resistant structural parts in aerospace vehicles, titanium alloy sheet foil has been widely used in honeycomb panels, sandwich structural panels and other components.With the introduction of the design concept of hypersonic aircraft and the growth of the development demand, higher requirements have been put forward for the performance of titanium alloy sheet foil. To this end, the project team selected Gr5(TC4) and Ti-2Al-Nb alloys as the research objects. By breaking through key technologies such as temperature control and rolling control, rolling control and cold control, the rolling process of alloy sheet foil has been greatly optimized, its organizational performance has been significantly improved, and the manufacturing level has been improved.
The research and development results have filled the gap in domestic high-temperature and high-strength titanium-based alloy sheet and foil products in the thickness range of 0.08~0.5mm, and provided the aerospace field with titanium alloy sheet and foil with higher strength, thinner thickness, and better high-temperature service performance. These high-performance titanium alloy sheet foils can be used not only in the aerospace field, but also in the fields of aerospace electronic component coating materials, mobile phone folding screens, and hydrogen fuel cell bipolar plates, showing broad application prospects.
In particular, the high-temperature titanium-based inter-metal compound Ti-2Al-Nb alloy sheet foil, its application can increase the operating temperature of key components such as aerospace aircraft skin and rudder wings from the existing 600℃ to 850~900℃, which provides an important material foundation guarantee for the development of a new generation of hypersonic aircraft.
In the future, based on the research results of high-performance titanium alloy plates and foils in this project, the project team will continue to carry out in-depth pilot verification and engineering application work, and gradually promote the industrial cultivation and incubation of related titanium alloy plates and foils in order to achieve mass production and make greater contributions to promoting the development of China's aerospace field.