https://phys.org/news/2018-01-yields-super-strong-aluminum-alloy.htmlThe article says this is "comparable" to Stainless steel. Later in the body of the article it says nearly as strong as high strength steel. So I was thinking since this is more of a structural breakthrough than a magic mix of metals perhaps similar techniques could be applied to titanium or steel or tungsten or even compound alloys to enhance their strength and melting or de-tempering temperature.As is the benefits of having aluminum as strong as steel are evident enough in space applications.
AbstractLight-weight aluminum (Al) alloys have widespread applications. However, most Al alloys have inherently low mechanical strength. Nanotwins can induce high strength and ductility in metallic materials. Yet, introducing high-density growth twins into Al remains difficult due to its ultrahigh stacking-fault energy. In this study, it is shown that incorporating merely several atomic percent of Fe solutes into Al enables the formation of nanotwinned (nt) columnar grains with high-density 9R phase in Al(Fe) solid solutions. The nt Al–Fe alloy coatings reach a maximum hardness of ≈5.5 GPa, one of the strongest binary Al alloys ever created. In situ uniaxial compressions show that the nt Al–Fe alloys populated with 9R phase have flow stress exceeding 1.5 GPa, comparable to high-strength steels. Molecular dynamics simulations reveal that high strength and hardening ability of Al–Fe alloys arise mainly from the high-density 9R phase and nanoscale grain sizes.