20.500.12556/RUL-134702 Influence of laser texturing on microstructure, surface and corrosion properties of Ti-6Al-4V We present the modification of Ti-6Al-4V surfaces with a diode end-pumped Nd:YVO4 laser by varying the distance between laser-produced micro(µ)-channels. We analyzed the influence of laser texturing on the morphology, microstructure, surface and corrosion properties of Ti-6Al-4V. SEM imaging reveals a characteristic µ-channel pattern with different scan line separations, while electron backscatter diffraction (EBSD) indicates that laser texturing with the current parameters influences the microstructure up to 2 µm deep with the most significant influence at the tips, where melting and rapid solidification occur. The Vickers hardness test indicates a surface hardening effect of the laser-textured compared to the as-received Ti-6Al-4V surfaces. The XPS analysis showed that the oxide layer on the laser-textured samples was considerably thicker compared to the as-received sample, at 20 and 7 nm, respectively. We observed that the wettability was strongly correlated with the scan line separation. The results show increased hydrophobicity with increased scan line separation. The corrosion resistance was improved for laser-textured surfaces compared to the as-received surface and increased with the scan line separation. surface texture Ti-6Al-4V alloy microstructure wettability corrosion true false true Angleški jezik Ni določen Članek v reviji 2022-01-27 08:52:56 2022-01-27 08:52:57 2022-09-13 03:56:39 0000-00-00 00:00:00 2020 0 0 9 str. iss. 11, art. 1504 Vol. 10 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.1: 544.53:620.194 2075-4701 10.3390/met10111504 37036803 RAZ_Conradi_Marjetka_2020.pdf RAZ_Conradi_Marjetka_2020.pdf 1 B5EADEADA501D0461A8BE2DF4FB8C990 096c60ba6200fbf7b598592ce607d32bf00fad7bbc3a8350cb32ac9dd5f8f3b3 46e3c7ca-7f46-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153283 https://www.mdpi.com/2075-4701/10/11/1504 1 f033eb18-7f45-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153282 Fakulteta za strojništvo 0 0 0