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Student Femto- and nanosecond laser surface modification of stainless steel

Wednesday (24.06.2020)
12:08 - 12:11 Room 1
Part of:
- Poster Processing of Functional Texturing on Micro-fibers by Laser Induced Periodic Surface Structures 1 Prof. Masaki Yamaguchi
- Poster 3D microfabrication of thermoset polymer PDMS using laser-induced bubble 1 Prof. Yasutaka Hanada
- Poster *student* Laser-Peening with solid state medium as plasma confinement layer 1 Yuki Sugimoto
- Poster *student* Numerical Simulation and Test Experiments of Selective Laser Thermoregulation for Accelerated Degradation Test of SiC/SiC CMC 1 Hayato Koshiji
- Poster *student* Laser peening of sprayed ceramics film 1 Yuya Yasuyoshi
- Poster *student* Influence of thickness of plasma confinement layer on laser peening using near infrared laser 1 Hikaru Hirata
- Poster *student* Green femtosecond laser direct writing using reduction of glyoxylic acid Co/Ni complexes 1 Hikaru Nakatani
- Poster Ultrafast pulse GHz burst mode laser ablation for efficient surface microprocessing 1 Ph.D. Francesc Caballero Lucas
- Poster *student* Development of hybrid laser system with blue diode laser and single mode fiber laser for welding of pure copper 1 Shumpei Fujio
- Poster *student* High stability of frequency and robustness of noise-like pulse fiber laser 1 Hitoshi Nakano
- Poster *student* Broadband pulsed fiber laser for suppression of stimulated Brillouin scattering 1 Tetsuya Yamazaki
- Poster Aligned growth of ZnO nanowires on diamond by nanoparticle-assisted pulsed laser deposition 1 Dr. Daisuke Nakamura
- Poster *student* Spectrometer-based Ultrashort Pulsed Laser Selective Microstructuring of Ni/NiCr Multi-layer Coatings 1 Chao He
- Poster *student* Femto- and nanosecond laser surface modification of stainless steel 1 Dipl.-Volkswirt Paulina Dzienny
- Poster Laser writing of waveguides in porous glass for small molecules detection 1 Dr. Roman Zakoldaev
- Poster *student* Homogeneous intensity within the Rayleigh length and enhanced depth of focus for Gaussian beams 1 Christian Bischoff
Session Chair

Session PS: Poster Session 01
Belongs to:
Topic PS: Poster Session

The rapid development of material processing technologies utilizing lasers, and their advantages, including in particular, high quality, resolution, and repeatability, imply the universality of application of these processes in terms of steel treatment and processing. Depending on selected laser radiation properties, a variety of phenomena occurs. In case of nanosecond pulse, usually an oxide layer is formed, so there is a change in both morphology and chemistry of the surface layer, whereas ultrashort pulses exert an impact mainly on the topography. Both lead to change in surfaces susceptibility to corrosion, optical properties, wettability, etc. In this research two different laser sources were used on AISI 304 stainless steel. First was nanosecond (pulse duration τ = 230 ns) ytterbium:glass fiber laser with a wavelength of 1062 nm. The second was femtosecond (τ = 280 fs) fiber laser with a wavelength of 1060 nm. The process parameters were selected in such a way that in the first case the surface of good anti corrosion properties was obtained, and in the second one, a homogenous LIPSS were produced. The stainless steel was irradiated with a varying combination of laser sources. Then, the microscopic visualisation, chemical analysis of XPS, corrosion tests (linear polarization resistance) (Figure 1a) and wettability was examined. The Tafel curves were recorded in 3% NaCl environment and the open circuit potential OCP was recorded for 1 h to achieve changes smaller than 1 mV/s.

Dipl.-Volkswirt Paulina Dzienny
Wroclaw University of Science and Technology
Additional Authors:
  • Dr. Katarzyna Mroczkowska
    Wroclaw University of Science and Technology
  • Dr. Aleksander Budnicki
    TRUMPF Laser GmbH + Co. KG
  • Prof. Dr. Arkadiusz Antończak
    Wroclaw University of Science and Technology


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