Corrosion Control in Military Assets
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Corrosion Control in Military Assets M. Schorr1, B. Valdez1, R. Salinas1, R. Ramos2, N. Nedey3 and M. Curiel3 1
Laboratorio de Materiales, Minerales y Corrosión, Instituto de Ingeniería, Universidad Autónoma de Baja California, C.P. 21280, Mexicali, México. 2 Laboratorio de Materiales Avanzados, Instituto de Ingeniería, Universidad Autónoma de Baja California, C.P. 21280, Mexicali, México. 3 Laboratorio de Semiconductores, Instituto de Ingeniería, Universidad Autónoma de Baja California, C.P. 21280, Mexicali, México. ABSTRACT The combat fields of modern wars, including the struggle against global terrorism, are localized in diverse, harsh regions: tropical, desert, artic, marine, with varied weather conditions, which adversely affect the corrosion performance of the equipment and facilities involved. For the sake of brevity, three groups of military mobile and fixed equipment and structures are dealt with: armored ground wheeled vehicles; naval aluminum vessels, and buildings and facilities for providing dwellings, weapons storage and services to the armed forces. They are usually made from carbon steel, aluminum alloys and reinforced concrete, because of their useful properties: high strength, easy availability and low cost. However, due to their limited corrosion resistance they should be protected by coatings (including military coatings), but primarily paint; cathodic protection and corrosion inhibitors. All these systems suffer from several types of localized corrosion and degradation: galvanic, pitting, intergranular, dealloying, cavitation, erosion, stress cracking, UV effects in plastics and organic coatings. The military assets require the implementation of corrosion control methods and techniques through all their stages: design, construction, installation and operation. Typical cases of corrosion will be presented based on the authors experience and knowledge. INTRODUCTION The armed forces of a nation operate and maintain many military systems, categorized into several functional areas: •
Infrastructure: Airports, seaports, shipyard, telecommunication utilities, land and marine bases, bridges and roads, energy generation and distribution, fuel farms.
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Facilities: Buildings, hospitals, training installations, weapons, ammunition, materials storage; water and sewer utilities, troops, dwellings, security control.
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Vehicles, for land, sea, air transportation of personnel, of equipment, weapons supplies, and fuels. They also comprise combat tanks, ships, aircraft, drones, submarines, aircraft carriers.
All these military assets are protected against corrosion to extend their useful service life, to assure their reliability and readiness.
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A significant development in the struggle against corrosion is the establishment of a central institution to serve the U.S. armed forces, m
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