Research Information System
6TH INTERNATIONAL CONFERENCE ON SCIENTIFIC AND ACADEMIC RESEARCH ICSAR 2025, Konya, Turkey, 12 - 13 March 2025, vol.1, no.1, pp.231-242, (Full Text)
The present study examines the effect of fiber laser surface texturing on the wettability of
5754 aluminum alloy in various atmospheric environment. Laser treatments were carried out in ambient
air and nitrogen environments at a fixed laser power of 50 W, scanning speed of 250 mm/s, and pulse
repetition rate of 200 kHz. The textured analyzed corresponded to two different patterns, where different
distance spacings induced the features (300 μm and 600 μm). These variations depend on the texturing
parameters and the processing atmospheres, as estimated merely by the comparative contact angle
measurements. Contact angles of samples processed in air were between 34.13° and 76.08°, and micro to
nanoscale textures could enhance hydrophobicity. On the other hand, nitrogen-processed samples
exhibited a narrower contact angle range of 60.86° to 67.7°, reflecting less hydrophilic responsiveness
when compared to air processing. Texture 2 in 600 μm spacing in air (76.08°) displayed the least
hydrophobicity while Texture 1 in 300 μm spacing in air (34.13°) displayed the most hydrophilicity.
Optical microscopy further confirmed that the nitrogen processing modifies surface chemistry, in turn
likely decreasing oxide formation and impacting wettability. This research gives insight and highlights
the influence of texturing of laser and environmental contributions in imparting wettability to aluminum
alloys which is significant from the coatings, corrosion resistance, and self-cleaning perspective.