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Titanium alloy surface modification by excimer laser irradiation D. S. Milovanović, S. M. Petrović, M. A. Shulepov [et.al.]

Contributor(s): Petrović, Suzana M | Shulepov, Mikhail A | Tarasenko, Viktor Fedotovich | Radak, Bojan B | Miljanić, Šćepan S | Trtica, Milan S | Milovanović, Dubravka S | Томский государственный университет Радиофизический факультет Кафедра квантовой электроники и фотоникиMaterial type: ArticleArticleSubject(s): титановые сплавы | эксимерные лазеры | модификация поверхностиGenre/Form: статьи в журналах Online resources: Click here to access online In: Optics and Laser Technology Vol. 54. P. 419-427Abstract: The main effects of the interaction of UV emitting KrCl (at 222 nm) and XeCl (at 308 nm) excimer lasers with titanium alloy Ti6Al4V are presented. Single-pulse and multi-pulse irradiations were used, with varying laser beam fluences. The resulting interactions with the surface show thermal character, and produce: (i) damages in the form of craters at higher pulse counts and fluences of 7 J cm-2 and 7.2 J cm-2, which are far above the damage threshold; (ii) melt pools with visible wave-like structures at periphery; (iii) resolidified droplets and cracks at periphery (at higher pulse count), (iv) increasing content of oxygen, with a domination of TiO2.
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The main effects of the interaction of UV emitting KrCl (at 222 nm) and XeCl (at 308 nm) excimer lasers with titanium alloy Ti6Al4V are presented. Single-pulse and multi-pulse irradiations were used, with varying laser beam fluences. The resulting interactions with the surface show thermal character, and produce: (i) damages in the form of craters at higher pulse counts and fluences of 7 J cm-2 and 7.2 J cm-2, which are far above the damage threshold; (ii) melt pools with visible wave-like structures at periphery; (iii) resolidified droplets and cracks at periphery (at higher pulse count), (iv) increasing content of oxygen, with a domination of TiO2.

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