Single-shot femtosecond laser processing of Al-alloy surface: An interplay between Mbar shock waves, enhanced microhardness, residual stresses, and chemical modification

Autor: Ageev, E., Andreeva, Y., Ionin, A., Kashaev, N., Kudryashov, S., Nikonorov, N., Nuryev, R., Petrov, A., Rudenko, A., Samokhvalov, A., Saraeva, I., Veiko, V.
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Ageev, E.; Andreeva, Y.; Ionin, A.; Kashaev, N.; Kudryashov, S.; Nikonorov, N.; Nuryev, R.; Petrov, A.; Rudenko, A.; Samokhvalov, A.; Saraeva, I.; Veiko, V.: Single-shot femtosecond laser processing of Al-alloy surface: An interplay between Mbar shock waves, enhanced microhardness, residual stresses, and chemical modification. In: Optics and Laser Technology. Vol. 126 (2020) 106131. (DOI: /10.1016/j.optlastec.2020.106131)
ISSN: 0030-3992
DOI: 10.1016/j.optlastec.2020.106131)
Popis: 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.
Databáze: OpenAIRE
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