Home Research & Education New metal 3D printing technology for ultra-strong materials for space travel

New metal 3D printing technology for ultra-strong materials for space travel

The research team led by Dr. Jeong Min Park from the Department of Nanomaterials at the Korea Institute of Materials Science (KIMS), in collaboration with Professor Jung Gi Kim from Gyeongsang National University and Professor Hyoung Seop Kim from Pohang University of Science and Technology (POSTECH), has successfully developed a new 3D-printed high-performance metal alloy suitable for use in space.

Through the targeted addition of carbon, finely distributed nano-carbide particles could be produced at the boundaries of the nanoscale cell structure. This led to a significant increase in the mechanical properties of the alloy at extreme cryogenic temperatures of up to -196 °C. Compared to carbon-free alloys, the new alloy achieved a tensile strength and ductility that were improved by more than 140%. Particularly noteworthy is the doubling of elongation at 77 K compared to 298 K, which underlines the alloy’s suitability for applications in cryogenic environments.

Dr. Jeong Min Park, the senior researcher and project leader stated, “This research presents a significant breakthrough in developing new alloys for extreme environments, offering new possibilities. Through 3D printing technology that surpasses the manufacturing limits of conventional space exploration components, we can significantly improve the performance of parts used in space launch vehicles.”

The precise microstructure control made possible by the additive manufacturing process also provides valuable information for the design of future high-performance alloys.

The alloys developed have potential applications in complex components such as fuel injectors for space rocket engines and turbine nozzles for power generation. These technologies will help to increase the performance and lifetime of components used in the demanding conditions of space. The research was funded by KIMS projects and the results were published in the journal “Additive Manufacturing”. The team plans to further investigate the commercial viability of the technology and conduct additional tests under extreme conditions.


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