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Cathodic protection (CP; / kæˈθɒdɪk / ⓘ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. [1] A simple method of protection connects the metal to be protected to a more easily corroded "sacrificial metal" to act as the anode. The sacrificial metal then corrodes instead ...
50-by-80-foot (15 m × 24 m) flight deck, hangar for all aircraft. The Legend-class cutter, also known as the National Security Cutter (NSC) and Maritime Security Cutter, Large, is the largest active patrol cutter class of the United States Coast Guard, with the size of a frigate. Entering into service in 2008, the Legend class is the largest ...
Galvanic anode. The bright rectangular objects on these ship components are galvanic anodes. A galvanic anode, or sacrificial anode, is the main component of a galvanic cathodic protection system used to protect buried or submerged metal structures from corrosion. They are made from a metal alloy with a more "active" voltage (more negative ...
The Independence class is a class of littoral combat ships built for the United States Navy. The hull design evolved from a project at Austal to design a high speed, 40-knot-cruise ship. That hull design evolved into the high-speed trimaran ferry HSC Benchijigua Express and the Independence class was then proposed by General Dynamics and Austal ...
MQ-8 Fire Scout. USS Independence (LCS-2) is the lead ship of the Independence -class of littoral combat ships. She is the sixth ship of the United States Navy to be named for the concept of independence. The design was produced by the General Dynamics consortium for the Navy's LCS program, and competes with the Lockheed Martin –designed ...
The restoration included the replacement of steel plates below the waterline, a new ballast system, updated electrical systems, and coating work that includes a cathodic protection system. The restoration started in May 2015, and ended on 25 September 2016, when the ship returned to South Street Seaport museum. [3]
175' Keeper-class coastal buoy tender (WLM) USCGC Joshua Appleby (WLM-556), a 175' USCG coastal buoy tender. USCGC Ida Lewis (WLM-551) USCGC Katherine Walker (WLM-552) USCGC Abbie Burgess (WLM-553) USCGC Marcus Hanna (WLM-554) USCGC James Rankin (WLM-555) USCGC Joshua Appleby (WLM-556) USCGC Frank Drew (WLM-557)
Galvanic corrosion. Corrosion of an iron nail wrapped in bright copper wire, showing cathodic protection of copper; a ferroxyl indicator solution shows colored chemical indications of two types of ions diffusing through a moist agar medium. Galvanic corrosion (also called bimetallic corrosion or dissimilar metal corrosion) is an electrochemical ...