Complex approach to studying both qualitative and quantitative friction and wear characteristics of laser-clad layers has been applied. Both type and value of wear, friction factors have been determined as depended of the coating composition, load and temperature in dry friction. Comparative analysis between laser cladding and plasma spraying has been carried out.

The work investigated the effect of thermal limiters on the distribution of heat in the product and the formation of the structure of multilayer samples made of stainless steel AISI 308LSi deposited by electric arc welding in argon. It was found that as a result of the formation of products using thermal limiters, the high temperature regions deepen towards the substrate. It was revealed that the greatest effect of thermal limiters is observed in the central parts of the products. An increase in the fraction of γ-Fe is observed, which is confirmed by the dissolution of the dendritic axes of δ-Fe, in the sample obtained using thermal limiters. The obtained results confirm the prospects for producing multilayer products with increased mechanical properties by the method of electric arc welding using thermal limiters.

The paper investigates the influence of the forming graphite skids on the change in the hardness of multilayer samples made of stainless steel AISI 308LSi deposited by electric arc welding in argon. Utilization of graphite skids makes it possible to obtain a product with a smoother outer side surface. An increase in the fraction of the austenite phase is observed in the samples obtained using graphite skids. An increase in the proportion of the austenite phase leads to an overall increase in the hardness of the product.