Abstract
Currently, significant qualitative changes are taking place in metallurgy: the range of metal products is expanding and the share of production of special steels is increasing, requirements for their quality and operational properties are increasing. These changes are driven by the growing needs of various industries, such as automotive, aviation, machine tool industry, construction industry and energy, where high performance properties of steel are becoming key factors to ensure the reliability and safety of final products. Modern steel processing and production technologies allow us to achieve exceptional properties, including increased strength, corrosion resistance and wear resistance. In turn, the use of such special steels in critical components of machinery and equipment helps to increase their service life and reduce maintenance costs. In addition, the active introduction of innovative methods, such as additive technologies and process automation, opens up new opportunities in the creation of metal products. This not only reduces production time, but also ensures the highest quality at all stages – from receiving raw materials to the final processing of the product. Thus, metallurgy is rapidly transforming, responding to the challenges of the time and the high demands of the modern market. As a result of the conducted research, the main parameters of the technology for obtaining nitrided chromium SHS ligatures for special steels and alloys used in additive manufacturing and smelting of nitrogenous steels and alloys have been determined. The control of the structure formation of nitrogen-containing special steels can be achieved by improving the technology of sputtering combustion in the SHS synthesis of chromium ligatures, as well as strictly rationing both the chemical and granulometric composition of nitrogen-containing metal powders for the production of special steels using additive technologies.
Keywords:
additive technologies, metal powdres, self-propagating high-temperature synthesis, direct laser fusion, nitride nickel-cromium alloy