1 results about "Fiber crystal" patented technology

The application relates to the technical field of alloy materials, in particular to a high-strength alloy material and a preparation process thereof. The application overcomes the problem that the mechanical properties and high-temperature resistance of alloy materials in the prior art cannot be considered simultaneously. The alloy component obtained by the application comprises Al-Li-Cu-Zr-Sc-Yb-In-Ag, and a hot-pressed alloy is obtained through high-temperature zirconium melting-low-temperature lithium pressing smelting, hierarchical homogenization, deformation heat processing, deep cooling and pre-strain dislocation network induction technology; then a bimodal structure coexisting with equiaxed fine crystals and elongated fiber crystals is constructed through gradient instantaneous annealing, and a dense carbon atom layer is deposited on the surface by combining chemical vapor deposition technology. The alloy material obtained by the application has good fatigue resistance and corrosion resistance, and is suitable for large thin-walled stressed components of aerospace vehicles and high-temperature protection fields.