Wear properties of CP-Ti after surface functionalization with Direct Laser Interference Patterning

DATA FOR AN ARTICLEDonata Kuczyńska-Zemła, Jarosław Pura, Roman Ostrowski, Halina Garbacz,Wear properties of CP-Ti after surface functionalization with Direct Laser Interference Patterning,Wear,2025,206284,ISSN 0043-1648,https://doi.org/10.1016/j.wear.2025.206284.(https://www.sciencedirect.com/science/article/pii/S0043164825005538)Abstract: In this work, the tribological properties of pure titanium functionalized using Direct Laser Interference Patterning (DLIP) with two types of patterns (grooves and grid) have been evaluated with comparison to the initial state (shot-peened+acid-etched). Tribological tests were carried out in Hank’s solution at 37 °C, using the pin-on-plate method. The main aim of this study was to investigate the effect of surface patterns on wear behavior. Samples with more uniform surface topography – initial state and DLIP grid – exhibit similar wear behavior. Both the Initial state and the DLIP grid, for all examined samples, displayed smooth wear curves, whereas the DLIP grooves showed stepped wear processes, for both investigated directions. The anisotropic surface topography of DLIP grooves significantly affects the sedimentation and deposition of wear residues. The progressive accumulation of the wear products in the contact zone causes a decrease in the displacement curve of the pin/plate couple. After reaching the critical thickness, wear residues detached, leading to a sudden jump in the displacement curve of several micrometers in height. Despite DLIP functionalization, the wear behavior remained strongly influenced by the crater topography formed during shot peening before laser functionalization.Keywords: Titanium; Laser treatment; Wear resistance; Pin on plate Content*:(DATA arranged in folders)PIN_SEM - Scanning Electron Microscope observations of UHMVHDPE pin after wear testsTi_EDS - EDS chamical composition analysis of Ti plates after wear testsTi_MACRO - Light microsope observations of Ti plates after wear testsTi_PROFILOMETRY - Optical Profilometry of of Ti plates after wear testsTi_SEM - Scanning Electron Microscope observations of Ti plates after wear testsTi_TRIBOLOGY - Data collected during wear tests**Ti_XRD - XRD analysis of Ti plates after wear tests *) all files contain the following symbols in their names relating to the type of titanium sample:KT - smaples after Shoot Peening and Chemical EtchingPP - smaples after Shoot Peening and Chemical Etching followed by DLIP modification - Grooves perpendicular to wear directionPW - smaples after Shoot Peening and Chemical Etching followed by DLIP modification - Grooves longitudinal to wear directionW - smaples after Shoot Peening and Chemical Etching followed by DLIP modification - Grid patternother markings are irrelevant**) Friction Force calibration data atached Acknowledgments:Donata Kuczyńska-Zemła acknowledges the Foundation for Polish Science (FNP) for their support in her career through the Start 2022 program.This research was also supported financially by the National Science Centre, Poland under the grant OPUS 23 [2022/45/B/ST5/03398].