Аңдатпа
The study was conducted to evaluate the possibility of adjusting the composition of the improved 30ХН2МА steel through microalloying with ferrosilicon boron, enabling its subsequent use as a wear-resistant material with properties comparable to Hardox steel. 30ХН2МА steel served as the base material, and ferrosilicon boron was added during the final minutes of melting. The boron content in the ferrosilicon boron was 0.9%, and the silicon content was 62%. Incorporation of this complex alloy allowed the steel to be simultaneously partially deoxidized and microalloyed with boron at a concentration of 0.002-0.003%. It was determined that, at a tempering temperature range of 400-450°C, its hardness, tensile strength, and wear resistance approach the corresponding parameters of Hardox 500 steel, supporting its recommendation as a wear-resistant material. Considering the widespread use of 30ХН2МА steel, its high hardenability, relatively good casting properties, low sensitivity to temper brittleness, and enhanced mechanical properties after boron microalloying, it can be considered a suitable wear-resistant material for the production of shaped castings