Russian Scientists Develop High-Strength, Corrosion-Resistant Alloy
Material scientists in Russia have developed a new aluminum-based alloy with a unique combination of high strength, excellent casting properties, and strong resistance to corrosion. This innovative material, composed of aluminum, zinc, magnesium, copper, zirconium, chromium, and erbium, is poised to benefit industries such as aerospace, automotive, and construction, particularly in extreme temperature environments. The breakthrough was reported by the press service of NITU MISIS (National University of Science and Technology, Moscow).
Andrey Pozdnyakov, an associate professor at the Department of Metal Science of Non-Ferrous Metals at NITU MISIS, explained that the alloy combines all the essential performance characteristics needed in demanding applications, including corrosion resistance and strength at high temperatures. According to Pozdnyakov, the new alloys are expected to have diverse applications across various industries.
This material falls under the category of "crossover" alloys, a term used to describe aluminum-metal combinations that exhibit both high strength and casting versatility. These alloys are also easier to recycle, promoting sustainability through potential reuse.
The research team discovered that the alloy's unique properties are due to its aluminum base, supplemented by small amounts of other metals such as zinc, magnesium, copper, zirconium, and chromium. The inclusion of the rare-earth metal erbium, or alternatively yttrium, further enhances the alloy's heat resistance and reduces its susceptibility to cracking during casting.
Laboratory tests revealed that the alloy withstands prolonged exposure to temperatures as high as 210 degrees Celsius without compromising its microstructure. It also demonstrates superior mechanical stress tolerance compared to other alloys, significantly broadening its practical applications.
The newly developed alloy maintains its corrosion resistance while offering improved mechanical properties, making it an attractive option for industries that demand materials capable of withstanding harsh conditions and rigorous mechanical use. The findings of this research highlight the potential for advancing material science in creating durable, versatile alloys for modern industrial needs.
