Scientists from Russia, France and Japan will conduct on the basis of the Samara University. Koroleva theoretical and experimental research on the creation of a technology for the production of new high-performance bimetallic materials for aerospace technology.
The work is carried out within the framework of the project "Development of a method for creating and optimizing the properties of high-gradient bimetallic materials for aerospace purposes." The initiative provides for the formation of an international scientific team: it will include specialists from Samara University, the Institute for Problems in Mechanics named after A.Yu. Ishlinsky RAS (Moscow), Tokyo Metropolitan University (Japan) and the University of South Brittany (France).
It is expected that new materials will be able to withstand significant mechanical stress and extreme temperature changes with a difference of several hundred degrees.
βIt is very important that the materials used in aerospace engineering are thermally stable so that they do not expand at high temperatures. This can be achieved by taking different materials with different coefficients of linear expansion and alternating them in a multilayer structure: when one layer expands, the other contracts, and there are no changes in the entire volume, βthe scientists say.
The researchers suggest using additive technologies to apply layers of a metal-powder composition onto sheet metal substrates, while creating a special micro- and macro-relief on the surfaces, which will increase the contact area of ββthe layers being joined by almost an order of magnitude and even form mechanical permanent joints in the form of micro-locks.
Source: 3dnews.ru