Year: 2026
Type: article
Abstract: An analysis of methods for creating powder wires used for electric arc welding is presented, with an emphasis on their chemical composition and microstructure. Various metal powders (iron, tungsten, manganese, chromium and vanadium) were used for the production of powdered wires, and aluminum gas purification dust was also added. Powder wires based on Fe – C – Si – Mn – Cr – W – V, Fe – C – Si – Mn – Cr – Ni – Mo, Fe – C – Si – Mn – Cr – Mo – Ni – Ti, Fe – C – Si – Mn – Cr – W – V– Ti, WC ‒ Co, Ni/WC ‒ Co, Fe – Cr – C and Fe – Cr – B, which were used to form protective coatings. The latter play a key role in industry, as they increase the service life of equipment subjected to significant mechanical and thermal stresses. The surfacing process was carried out using an ASAW-1250 welding tractor in five layers, which helps to prevent mixing of the deposited metal with the substrate and improves the coating quality. The microstructural and chemical characteristics were studied using a scanning electron microscope (SEM), which allowed for a deeper understanding of the structure of the obtained materials. As a result of the experiments, it was revealed that the composition of the powder wires and the surfacing modes significantly affect the characteristics of the resulting layer. The discovered globular forms of nonmetallic inclusions indicate the presence of various oxides and silicates, which, in turn, indicates the peculiarities of the formation of the surfacing layer.
Institution: Siberian State Industrial University
Language: English
Subfield: Metals and Alloys
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7149969595