%0 journal article
%@ 0030-3992
%A Ageev, E., Andreeva, Y., Ionin, A., Kashaev, N., Kudryashov, S., Nikonorov, N., Nuryev, R., Petrov, A., Rudenko, A., Samokhvalov, A., Saraeva, I., Veiko, V.

%D 2020
%J Optics and Laser Technology

%P 106131 
%R doi:10.1016/j.optlastec.2020.106131
%T Single-shot femtosecond laser processing of Al-alloy surface: An interplay between Mbar shock waves, enhanced microhardness, residual stresses, and chemical modification
%U https://doi.org/10.1016/j.optlastec.2020.106131
 
%X Ambient-air single-shot ablative femtosecond laser surface processing of an advanced Al-alloy AA5083 was characterized by non-contact broadband ultrasonics, scanning electron microscopy with energy-dispersive x-ray spectroscopy, x-ray diffraction, and Vickers microhardness tests. The characterization indicates that the generated Mbar-level shock waves induce not only a strong structural modification of the processed micron-thick surface layer with sub-GPa-level residual compressive and tensile stresses, raising its microhardness by almost 45%, but also significant depth-dependent chemical modification within the layer.