Electron backscatter diffraction characterization of laser-induced periodic surface structures on nickel surface

Xxx Sedao (1) , Claire Maurice (2, 3) , Florence Garrelie (1) , Jean-Philippe Colombier (1) , Stéphanie Reynaud (1) , Romain Quey (2, 3, 4) , Gilles Blanc (3) , Florent Pigeon (1)

1 LHC - Laboratoire Hubert Curien
2 MPM-ENSMSE - Département Microstructures et Propriétés Mécaniques
3 LCG-ENSMSE - UMR 5146 - Laboratoire Claude Goux
4 SMS-ENSMSE - Centre Science des Matériaux et des Structures

tWe report on the structural investigation of laser-induced periodic surface structures (LIPSS) generated inpolycrystalline nickel target after multi-shot irradiation by femtosecond laser pulses. Electron backscatter diffraction (EBSD) is used to reveal lattice rotation caused by dislocation storage during LIPSS formation. Localized crystallographic damages in the LIPSS are detected from both surface and cross-sectional EBSD studies. A surface region (up to 200 nm) with 1-3◦grain disorientation is observed in localized areas from the cross-section of the LIPSS. The distribution of the local disorientation is inhomogeneous across the LIPSS and the subsurface region.

Domains: Engineering Sciences [physics]; Optics / Photonic

Xxx Sedao, Claire Maurice, Florence Garrelie, Jean-Philippe Colombier, Stéphanie Reynaud, et al.. Electron backscatter diffraction characterization of laser-induced periodic surface structures on nickel surface. Applied Surface Science, 2013, 10.1016/j.apsusc.2013.10.152. ⟨10.1016/j.apsusc.2013.10.152⟩. ⟨ujm-00948969⟩