20.500.12556/DiRROS-15880 Effect of laser texturing pattern on Ti6Al4Vtribocorrosion in a physiological solution Laser texturing is a process that alters a material’s surface properties by modifying its morphology, which can improve properties like adherence, wettability, thermal and electrical conductivity and friction. Here, the effect of laser texturing was studied on an alpha-beta titanium alloy (Ti6Al4V) biomedical material. Two types of patterned surfaces, cross-hatch with varying scan-line separations, Dx = 100, 180 and 280 μm and dimples of 200 μm size, were prepared on the surface of alpha-beta titanium alloy by laser technology. Prepared samples were characterised for their surface properties, such as corrosion, wear-induced corrosion, friction and wettability. Electrochemical and tribocorrosion properties in a physiological solution were studied on the samples with different texture densities of cross-hatch pattern and dimples and compared to the as-received alpha-beta titanium alloy surface. Corrosion rate decreased for laser-textured samples, especially for cross-hatch texture (down to 1 μm/year for Dx = 180 μm) when compared to the as-received alpha-beta titanium alloy surface due to the changed laser-induced surface film and wetting properties. Friction coefficient slightly decreased for all laser-textured surfaces, most noticeably for cross-hatch patterns, from 0.38 (as-received) down to 0.34 (Dx = 180 and 280 μm). The main contribution to total wear in physiological solution increased due to the mechanical wear, which is governed by the removal of the surface oxide layer induced by laser texturing. TiAIV laser texturing tribocorrosion open access TiAIV lasersko graviranje tribokorozija odprti dostop true false true ICE Publishing Angleški jezik Slovenski jezik © ICE Publishing 2021, all rights reserved Neznano 2022-12-02 10:20:25 2023-05-17 15:34:19 2023-05-18 03:35:51 0000-00-00 00:00:00 2022 0 0 Nasl. z nasl. zaslona; Opis vira z dne 11. 11. 2021; str. 278-288 iss. 4/5 Vol. 10 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-11-18 620.1/.2 2050-6260 10.1680/jsuin.21.00048 84504835 https://www.icevirtuallibrary.com/doi/pdf/10.1680/jsuin.21.00048 1 2f8e54d4-721a-11ed-a69a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=20997 RAZ_Conradi_Marjetka_2022.pdf RAZ_Conradi_Marjetka_2022.pdf 1 7D96FF1850023EC8F02B0DE7322788CF 56ce93fa68a462bd282fa4453b75b417ec2805510f619074e50021cea2bde542 fe877d32-9c80-11ed-b359-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=21471 Zavod za gradbeništvo Slovenije 0 0 0