Modifications of roughness and wettability properties of metals induced by femtosecond laser treatment

被引：259

作者：

Bizi-Bandoki, P. ^{[1
]}

Benayoun, S. ^{[1
]}

Valette, S. ^{[1
]}

Beaugiraud, B. ^{[1
]}

Audouard, E. ^{[2
]}

机构：

[1] CNRS, Lab Tribol & Dynam Syst, UMR 5513, F-69134 Ecully, France

[2] CNRS, Lab Hubert Curien, UMR 5516, F-42000 St Etienne, France

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 12期

关键词：

Femtosecond laser texturing; Multi-scale surface structuration; Surface topography; Ripples; Wettability; Cassie-Baxter's model; SUPER-HYDROPHOBIC SURFACES; ALUMINUM SINGLE-CRYSTALS; CORROSION-RESISTANCE; STAINLESS-STEELS; ABLATION; PULSES; FABRICATION; MORPHOLOGY; RIPPLES; MARKING;

D O I：

10.1016/j.apsusc.2010.12.089

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Topographic and wetting properties of AISI 316L stainless steel and Ti-6Al-V alloys were modified via linearly polarized femtosecond laser pulse irradiation. In order to induce a gradual evolution of the surface topography and wettability, four samples of each alloy were irradiated with different number of pulses. From the topographic point of view, a multi-scale morphology made of nano-and micro-periodic ripples was induced. The increase in the number of pulses led to the appearance of a third scale structure of waviness that is due to the laser scanning. The wettability of alloys was changed from a hydrophilic behavior to a hydrophobic one without lowering surface energies by chemical coatings. The apparent contact angle (CA) increased with increasing the number of pulses. A rise of about 50 degrees of the apparent CA of the Ti-6Al-V was noticed. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：5213 / 5218

页数：6

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