The selection of materials is of prime importance in the construction of craft. Generally naval architects and boat builders ensure that they select metals which are as far as possible compatible to each other and when this is not possible metals must be isolated from one another. There will always be occasions when fittings or…
Metals of differing electrochemical potential when in contact with one another form Galvanic cells. The metal with a lower potential in the galvanic cell will be anodic and will corrode. The same effect can occur in areas of different electrochemical potential in a single piece of metal such as a steel plate. Any craft moored…
For most ships, the annual maintenance work is roughly the same, including towing, power unit cleaning, repair and scratching, etc. In addition, it is an indispensable step to apply a new layer of antifouling paint on the hull shell and replace the zinc block (scientific name is zinc alloy sacrificial anode, referred to as zinc…
Aluminum anodes are a type of sacrificial anode, also known as aluminum alloy sacrificial anodes, aluminum sacrificial anodes, or aluminum blocks. They’re called sacrificial because they corrode themselves, sacrificing their own material to protect more important metals or equipment. Sacrificial anodes are made of easily corroded materials and installed on structures like pipelines and storage…
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