Iranian scientists get nanostructured steels

Scientists from the Iranian Technological University of Isfahan have successfully completed the development of a method for the production of a nano-composite of steel with a particle size ranging from 50 to 100 nm. Intermediate results have been achieved for steels with low carbon and nitrogen content, so-called IF steels (interstitial freedom). These types of steels have high flexibility in the state of the macrostructure, but their yield strength is quite low.

According to the experts of the Energoresurs company energo-resurs.net , Despite numerous attempts, no research center has yet succeeded in creating nanostructures of IF steel. The researchers applied a variety of severe plastic deformation methods, but the minimum particle size of the resulting particles was about 300 nm. The widespread use and advantages of nanostructured materials in the creation of vehicles have convinced scientists to continue research in this area in order to obtain nanostructures of IF steels.

Researchers were able to develop nanostructured IF steels using silicon carbide nanoparticles using severe plastic deformation techniques. The production of this nanocomposite will make it possible to obtain a certain type of steel with a much higher strength compared to the initial material. Therefore, the required thickness of the parts can be reduced to one quarter, which consequently leads to significant savings in consumption and weight.

As a result of this research, it is also possible to overcome the problem of low strength of vehicle bodies. The point is that the addition of ceramic particles, including silicon carbide (SiC) to steel sheets, can enable the production of nanostructures through a cumulative rolling process and create mass production.