Cavitation Damage Behavior in Seawater for Al-Mg Alloy Arc Thermal Spray Coating with Mg Content
I.C. Park, S.J. Kim
Division of Marine Engineering, Mokpo National Maritime University, 91, Haeyangdaehak-Ro Mokpo-si, Jeollanam-do, 530-729, Korea
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Al arc thermal spray coating materials are widely used to prevent the corrosion of steel structure materials in marine environment. To improve the durability of the Al alloy thermal spray coating layer, Al-Mg alloy arc thermal spray coating was performed with different Mg contents. Furthermore, the cavitation experiment was performed in natural seawater to evaluate the durability of the thermal spray coating layer, and the damaged surface was analyzed with a scanning electron microscope and a 3D microscope. As a result, the durability of the Al-Mg alloy thermal spray coating layer improved by the addition of Mg, and the Al-3%Mg thermal spray coating layer presented the best characteristics.

DOI: 10.12693/APhysPolA.129.572
PACS numbers: 52.77.Fv, 81.15.Rs