Study of ablation on surfaces of zircaloy Z-4 irradiated with femtosecond laser
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2019
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INTERNATIONAL CONGRESS OF MECHANICAL ENGINEERING, 25th
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The use of ultrashort femtosecond laser pulses is an alternative for micro machining on metal surfaces, with
several industrial applications, in such areas as aeronautics, aerospace, naval, nuclear, among others, where there is
growing concern about service reliability. Thus, markings for traceability purposes should ensure the integrity of the
metal as well as allow reading of the marked characters, whether automated or not. In this work, micro machining of
zircaloy Z 4 surfaces using femtosecond laser was performed aiming at the knowledge of the ablation threshold and
Scanning Electron Microscopy (SEM) analysis in different images. Obtained from micro machined traces, energy fluence
parameters and laser pulse overlap. The amount of ablated material in this femtosecond laser micro machining is
negligible, which contributes to ensuring that there is no mi crostructural damage. Such a process resulted in different
images, which characterize that there are different optical properties because of the parameters change.
Como referenciar
GUANABARA JUNIOR, PAULO; NOGUEIRA, ALESSANDRO F.; SAMAD, RICARDO E.; ROSSI, WAGNER de. Study of ablation on surfaces of zircaloy Z-4 irradiated with femtosecond laser. In: INTERNATIONAL CONGRESS OF MECHANICAL ENGINEERING, 25th, October 20-25, 2019, Uberlândia, MG. Proceedings... Rio de Janeiro, RJ: Associação Brasileira de Engenharia e Ciências Mecânicas, 2019. Disponível em: http://200.136.52.105/handle/123456789/31767. Acesso em: 30 Dec 2025.
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