Abstract
The surface is said to be super hydrophobic if the contact angle is greater than 150. This was achieved by surface modification. The most efficient method of modification of metal surfaces in order to achieve super hydrophobicity is surface texturing using laser radiation. The present paper provides insight on the flexible variation of laser radiation parameters to alter the geometric characteristic on metallic surface carried on Cu, Brass, 304, 316 steel, Titanium alloy (Ti6Al7Nb), Stainless steel (304S15), K9 glass, Aluminium (Al7075- T6), The titanium alloy (Ti-6Al-4V), with thickness of 0.3- 0.6mm using fibre laser, by varying the fluence (55-93 J/cm2 ), pulse energy, pulse overlap, scanning speed and by varying the laser power to maximum were reviewed. Review suggested that the best super hydrophobic surfaces were achieved by fibre laser texturing with a highest contact angle of 160 at a laser power of 20W and scanning speed of 50mm/sec with increased pulse overlap.
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