
Researchers at the National University of Science and Technology (NUST MISIS) collaborated with other Russian experts to develop a low-cost aluminium alloy that can resist temperatures up to 150°C higher than its counterparts.

The material, according to the experts who developed it, would drastically lower the weight and carbon footprint of new rail trains, aeroplanes, and other technology. The Journal of Alloys and Compounds has published their study. In practically all conditions, including the atmosphere, seas, freshwater, many chemical solutions, and most foodstuffs, aluminium and most aluminum-based alloys are extremely corrosion resistant. Aluminium is widely used in aerospace, automotive, electronics, and other sectors because to these qualities, as well as its low specific gravity and strong thermal and electrical conductivity.
According to the researchers, aluminium alloy wire might be a viable alternative to today's pricey and heavy copper-based conductors. Its usage in aeroplanes, high-speed rail cars, and other equipment would reduce their weight and size, resulting in considerable fuel savings and lower emissions into the atmosphere. However, according to NUST MISIS, the procedures for creating such alloys and their element bases are exceedingly costly and labor-intensive today.
The structure of a novel aluminum-based alloy, as well as the method for producing wire from it, has been proposed by university experts. The material stands out from its competitors, according to the designers, because of its low cost, simplicity of manufacture, and various unique physical features.
“Our material has a thermally stable structure and can withstand temperatures up to 400°C. All known aluminium alloys experience significant softening already at 250-300°C. Our alloy includes copper (Cu), manganese (Mn) and zirconium (Zr), which gives a unique combination of electrical conductivity, strength and heat resistance”, noted Torgom Akopyan, senior researcher at NUST MISIS Department of Metal Forming.
One of the important aspects of the new alloy, according to the researchers, is that it contains around 10 percent of its volume in unique nanoparticles comprising zirconium and manganese that are equally spread in the aluminium matrix.
The alloy was created utilising the ElmaCast technique developed by RPC Magnetic Hydrodynamics and an electromagnetic crystalliser (Krasnoyarsk). With the help of scientists from the NRC's "Kurchatov Institute," further deformation-heat treatment and analytical examinations were carried out.
The scientific team intends to continue working on improving the chemical composition of the new material as well as its processing in the future.
Responses







