Improving Hydrophobicity, Roughness and Hardness Properties of Specimens of Bronze Marine Propeller by Laser Surface Treatment

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Çınar İ., Başak M. E.

6th INTERNATIONAL MARMARA SCIENCES CONGRESS (IMASCON 2021 SPRING), Kocaeli, Turkey, 21 - 22 May 2021, pp.27

  • Publication Type: Conference Paper / Summary Text
  • City: Kocaeli
  • Country: Turkey
  • Page Numbers: pp.27


Laser surface treatment processes are very modern technology that allows the properties of the base metal to

remain intact while changing the surface properties. While the mechanical properties of the base metal meet

the design needs, the need to develop properties such as corrosion resistance, roughness, hydrophobicity,

hardness and cavitation resistance which is significantly dependent on hardness can be met by this method.

Ship propellers are frequently exposed to cavitation erosion as they operate at high speeds in sea water, which

is an ionic and corrosive environment. On the other hand, the roughness of the propeller surface and its

hydrophobic properties which are largely affected by the roughness values, significantly affect the ship's

resistance. In this study, the changes in the roughness, hardness and hydrophobic properties of the surface of

bronze propeller material samples were investigated by using laser surface treatment methods. A super

hydrophobic surface has been obtained.