Fine-tuning effect of Direct Laser Interference Patterning on the surface states and the corrosion behavior of a biomedical additively manufactured beta Ti alloy

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Phil Goldberg - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Avinash Hariharan - (Author)
  • Frederic Schell - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Martin Hantusch - (Author)
  • Magdalena Ola Cichocka - (Author)
  • Nicolas Perez - (Author)
  • Andrea Voss - (Author)
  • Lars Giebeler - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Volker Hoffmann - (Author)
  • Christoph Zwahr - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Andres F. Lasagni - , Chair of Laser-based Manufacturing, Fraunhofer Institute for Material and Beam Technology (Author)
  • Annett Gebert - (Author)

Abstract

Direct laser interference patterning (DLIP) is applied on additively manufactured near-beta Ti-13Nb-13Zr using nanosecond (ns) and picosecond (ps) pulses to tune its surface properties. Multiscale surface chemical and microstructural analyses (AES, XPS, XRD, SEM, TEM, GD-OES, contact angle) of those DLIP states are performed for understanding the corrosion behavior in a physiological PBS solution. Increased beta-phase fractions and uniformly thick passive layers of ns-DLIP surfaces led to enhanced corrosion stability compared to ps-DLIP with defective surface oxide. Both DLIP states control the surface wettability, thereby limiting corrosion and metal ion release rates, which is beneficial for implant applications.

Details

Original languageEnglish
Article number111230
Number of pages16
Journal Corrosion science : the journal on environmental degradation of materials and its control
Volume219
Early online dateMay 2023
Publication statusPublished - 15 Jul 2023
Peer-reviewedYes

External IDs

Scopus 85158897787

Keywords

Keywords

  • Beta titanium alloy, Corrosion, Direct laser interference patterning (DLIP), Laser powder bed fusion (LPBF), Oxidation, Passivity