Scientists from two Russian universities - Russian State Agrarian University (RSAU-MSHA) and Belgorod State National Research University (BelSU) - have created new types of steel, which will be in demand in industry and agriculture.

In Moscow, a high-strength steel for the agricultural sector has been developed, such steel has to be strong and at the same time ductile, with high impact viscosity. The necessary parameters were achieved by adding molybdenum, niobium and titanium, as well as due to special thermomechanical treatment mode (the steel is first heated up to 840-900 °C, then plastic deformation with compression 15-20% takes place, and then the alloy is cooled in water with subsequent low relaxation at temperature 200 °C). It is noted that the steel, produced by this method, is cheaper than foreign analogues by 15–20%.

The steel developed by BelSU scientists for power plant turbines is also comparable to foreign steels (super alloys like Inconel), but cheaper. They got it by changing the composition of the basic commercial steel P92, by adding more boron and simultaneously reducing the nitrogen content. It is noted, that the new material will allow to refuse from foreign equipment, and on one power station it will be possible to save about five million rubles a day: the alloy, allowing to work at elevated temperatures of superheated steam, allows to reduce amounts of consumed fuel, which gives such savings.

Сейчас на главной