The Key Application & Innovative Research With Development Of Titanium Alloy In Modern Space Rocket Technology
The Key Application & Innovative Research With Development Of Titanium Alloy In Modern Space Rocket Technology
With the rapid development of the aerospace industry in the 21st century, the requirements for space rocket technology have become increasingly stringent, especially the research and development of high-pulse thrust-to-weight engines, which have become the key to promoting the progress of space technology. In this context, titanium alloy, as a metal material with excellent high temperature strength, low temperature toughness and excellent processing properties, has become the core material in advanced space rocket technology products.
1. Exploration Of The Application Of Titanium Alloy in Extreme Environments
For components in space rockets that need to withstand extreme temperatures (-200℃ to higher), such as φ600mm large die forgings, accumulator plates, bearing bracket blanks and pipe joints, the Russian Institute of Metals is working on the process optimization and performance improvement of BT6c alloy. The alloy can not only work stably at -200℃, but also further reduce its operating temperature limit to 253℃ through particle metallurgy technology, which significantly improves the overall performance of the material. This innovative process ensures the uniformity of the fine crystal structure of each part of the blank, realizes the isotropic performance, and provides reliable material support for rocket components under extreme conditions.
2. Wide Application & Optimization Of Two-Phase Titanium Alloy
In the wide application of space rockets, two-phase titanium alloys such as BT6c, BT14, BT3-1, BT23, BT16, BT9 (BT8), etc., with their excellent heat treatment strengthening properties, have become the material of choice for key components.For example, BT6c alloy is widely used in various parts with high-strength requirements under the enhanced state of heat treatment with σb=1050MPa-1100Mpa. BT14 alloy, on the other hand, shows its unique advantages in the high-strength range of σb=1100Mpa～1150MPa. It can not only be used to manufacture tubular beam-shaped components with a diameter of 80mm to 120mm, but also can be used as fasteners in a low temperature environment of -196℃.
3. Future Prospects Of Ti-Al Intermetallic Compound-Based Alloys
In order to further improve the performance of space rockets, researchers are setting their sights on Ti-Al intermetallic compound-based alloys. With its unique overall performance, high thermal strength, high elastic modulus and low density, this kind of alloy is regarded as a leader in the new generation of space rocket materials. At present, the ”Composite Materials" scientific research and production joint company is committed to the development of comprehensive preparation technology and equipment for these new materials, including advanced smelting, pellet and isothermal deformation equipment, in order to promote the wide application of Ti-Al alloys in the aerospace field.
The application of titanium alloy in modern space rocket technology not only reflects the latest achievements of materials science, but also foreshadows the future development direction of space technology. Through continuous exploration and optimization of the preparation technology and performance of titanium alloys, researchers are providing more reliable and efficient material solutions for space rockets, helping mankind explore the grand blueprint of the universe.