The National University of Science and Technology “MISIS” (Moscow) has patented a high-performance aluminum alloy designed for aerospace and transport engineering. According to developers, its ultimate tensile strength and yield strength exceed those of commonly used industrial alloys in the 1201 and 2219 series by 30–40%, while maintaining high ductility.
The new alloy is particularly promising for sectors where strength-to-weight ratio is critical. “All components were first melted, blended, and cast into ingots. These ingots were then rolled into sheets, densifying the metal structure,” MISIS researchers explained.
Thermal treatment proved to be the key stage. After quenching, the alloy underwent artificial aging, and a microaddition of tin at the final stage promoted the formation of ultra-fine, copper-containing dispersed particles throughout the matrix, enhancing the alloy’s strength.
The production process aligns with standard casting, rolling, and heat treatment operations. Transitioning to manufacturing does not require upgrading metallurgical equipment, reducing capital expenditure and enabling a wider range of facilities to produce rolled semi-finished products such as sheets, plates, forgings, and extrusions.
In aerospace applications, the material targets primary airframe structures, mounting points for assemblies, and landing gear components. These high-stress elements demand a combination of static strength, fatigue resistance, and tolerance to deformation without failure. Improved specific strength allows aircraft designers to reduce airframe weight while preserving structural performance.
The research was supported by the Russian Science Foundation (grant No. 23-79-10147). Patent protection covers both the chemical composition and heat treatment procedures.
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