Schell, FredericFredericSchellAlamri, SabriSabriAlamriHariharan, AvinashAvinashHariharanGebert, AnnettAnnettGebertLasagni, Andrés-FabiánAndrés-FabiánLasagniKunze, TimTimKunze2022-03-062022-03-062022https://publica.fraunhofer.de/handle/publica/26988010.1016/j.matlet.2021.130920Complex repetitive periodic surface patterns were produced on a near-beta Ti-13Nb-13Zr alloy, using two-beam Direct Laser Interference Patterning (DLIP) employing a picosecond-pulsed laser source with wavelengths of 355 nm, 532 nm and 1064 nm. Different types of Laser-induced periodic surface structures (LIPSS) are produced, including low and high spatial frequency LIPSS, which are observed frequently on top of the line-like DLIP microstructures, as well as quasi-periodic microstructures with periods greater than the laser wavelength. The feature size of the fabricated LIPSS features could be tuned as function of the utilized laser process parameters.ennear-beta titanium alloylaser-based microprocessingmultiscale hierarchical structuresultra short pulses621530671journal article