ENHANCING THE WEAR RESISTANCE OF POLYMER COMPO-SITE FOUNDRY PATTERN
CZHNGE
DOI:
https://doi.org/10.25712/ASTU.2072-8921.2025.01.035Abstract
The paper explores the potential application of polymer composite materials based on a polyurethane matrix with the addition of metallic fillers for the production of tooling with enhanced wear resistance. Tribological tests were conducted on polyurethane composites with iron powder additives under conditions of dry friction. It was demonstrated that a uniform distribution of iron particles within the polyurethane matrix at a content of 1% Fe ensures minimal friction coefficient values (0.00378) and a low level of mass wear. In contrast, increasing the Fe content to 6% leads to higher average friction coefficient values (up to 0.12831 at a distance of 35 mm from the edge) due to localized particle concentration caused by sedimentation. An analysis of the surface structure of the composites in their initial state and after testing revealed a qualitative distribution of fillers in the matrix and strong interfacial bonding, which prevents the spalling of metallic components
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Copyright (c) 2025 Denis V. Sukhorukov, Evgeny S. Prusov, Vladislav B. Deev, Umar Sh. Vakhidov
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