Abstract
A constant elastic alloy is a widely used material with a high
elastic modulus and an excellent wave velocity consistency. Different
morphologies on the constant elastic alloy surface are observed through
femtosecond laser irradiation. When the laser average fluence is set to
0.58 J/cm2 and 200 laser pulses, with the increasing depth of
distilled water, the period of the laser-induced periodic surface
structures (LIPSS) becomes shorter accordingly. The higher the ethanol
concentration is, the more spot-shaped structures will be formed among the
surface structures when the depth of the coverage of ethanol is 2 mm. The
period of the LIPSS reaches its maximum when the concentration of ethanol
is 80%.
© 2017 Chinese Laser Press
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