Alan Robinson, managing director of Arc Energy Resources, discusses the benefits of weld overlay cladding to protect marine equipment and components from corrosion; and reviews the options available using corrosion resistant alloys. Paints and coatings are readily available to protect surfaces of a ship’s superstructure from saltwater in the atmosphere, but how can marine engineers ensure the long-term integrity of mechanical components and equipment such as pumps, valves and piping against aggressive corrosion caused by the sea itself, either below the surface or in areas subjected to significant amounts of saltwater spray. In order to maintain the efficient and reliable operation of marine equipment…