Term
| Cleaning and Corrosion Control |
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Definition
| manual established jointly by Navy, Air Force, and Army as combined effort to consolidate and coordinate corrosion control best practice |
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Definition
| what is used when a procedure is mandatory |
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Definition
| what are issued as naval messages to expedite release urgent and essential operational maintenance change info |
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Term
Automatic Distribution Requirement List
(ADRL) |
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Definition
| To automatically receive future changes and revisions to NAVAIR technical manuals , an activity must be established on the what maintained by NATEC |
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Term
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Definition
| As much as 30%, to what percent of military avionic failures are due to corrosion process |
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Definition
| 2 most important factors in preventing corrosion and only ones which can be controlled by field personnel are removal of what |
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Definition
| Aluminum and what other alloys found in aviation equipment will normally begin to corrode if salt deposits , other corrosive soils, or electrolytes are allowed to remain |
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Definition
| Use clean water with low chloride content for air craft washing and rinsing ( chloride content should be less than how many parts per million , approximately the same limit as potable water) |
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Definition
| Reporting Navy personnel will identify / report corrosion discrepancies in accordance with what |
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Definition
| Use clean water with low chloride content for air craft washing and rinsing ( chloride content should be less than how many parts per million , approximately the same limit as potable water) |
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Definition
| Reporting Navy Personnel shall identify/report corrosion discrepancies in accordance with what |
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Definition
| Refer to what, Hazardous Material Information System, or the appropriate parent service organization documents for the handling , storage and disposal of hazmat |
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Definition
| Materials or processes considered to be an improvement over existing ones, after local laboratory analysis or evaluation shall be forwarded to the Aircraft Controlling Custodian (ACC) or what for submission to the parent service organization for future evaluation |
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Definition
| what is the chemical or electrochemical deterioration of material |
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Definition
| Aluminum and magnesium form corrosion products that are white oxides or what |
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Definition
| the most common form of corrosion and most effectively removed my maintenance personnel is what |
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Definition
| what is the smallest unit of an element |
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Definition
| there are over how many elements |
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Definition
| what is the negatively charged particle |
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Definition
| what can not move through metal conductors |
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Term
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Definition
| what is a liquid solution containing ions |
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Term
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Definition
| branch of science concerned with chemical reactions at surfaces in contact with electrolytes |
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Definition
| how many conditions must exist before metal corrosion can occur |
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Definition
| corroding metal is called what |
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Definition
| when corrosion products form they often precipitate onto the corroding surface as what |
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Definition
| since corrosion products occupy more volume that original metal, the pain surfaces may become blistered, flaked, chipped or appear what |
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Definition
| the best time to prevent corrosion is at what stage |
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Definition
| metals most commonly used in aircraft construction are aluminum, steel, titanium and what else |
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Term
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Definition
| most alloys are made of entirely small crystalline regions called what |
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Term
| stress corrosion cracking |
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Definition
| many alloys used in aircraft construction are sensitive to a form of corrosion known as what |
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Term
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Definition
| what is the most common type of corrosion |
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Term
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Definition
| what corrosion occurs when different metals are in contact with each other and electrolytes |
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Definition
| what is a form of extremely localized attack that results in holes in the metal |
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Definition
| what metal is most susceptible to pitting damage |
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Definition
| what corrosion is an attack of the grain boundaries of the metal |
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Term
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Definition
| what is an advanced form of intergranular corrosion where the surface grains of a metal are lifted up by the force of expanding corrosion products occurring at the grain boundaries |
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Term
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Definition
| what corrosion occurs because the environment of the local area is very different from the larger environment |
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Term
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Definition
| what corrosion is a form of crevice corrosion which occurs on metals surfaces having a thin organic protective coating |
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Definition
| filiform corrosion occurs when the relative humidity of the air is between 65 and 90% and the air temperature is between what |
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Term
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Definition
| what corrosion is the increase in the rate of attack on metal due to action of a corrosive fluid against metal surface |
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Definition
| what corrosion is the intergranular or transgranular cracking of metal caused by combined effects of constant tensile stress and corrosion |
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Definition
| aluminum alloy can fail by stress corrosion cracking when subjugated to a stress which is only what percent of its rated strength |
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Definition
| what is the cracking of metal caused by the combined effects of cyclic stress and corrosion |
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Definition
| what corrosion occurs at contact areas between caused between materials under load subject to repeated vibrations |
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Term
| aluminum and aluminum alloys |
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Definition
| what are the most widely used materials for aircraft construction |
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Term
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Definition
| since pure aluminum is more corrosion resistant than most alloys , aluminum sheet stocks is often covered with a thin layer of nearly pure aluminum called cladding or what |
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Definition
| some aluminum parts are protected with an electrochemically applied oxide coating called what |
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Definition
| what is the lightest structural metal used for aircraft and missile airframes |
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Definition
| what are used for gears, bearings, high strength bolts, for mountings, racks, brackets, and hardware in avionics |
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Definition
| titanium and titanium alloy find numerous uses in aircraft , engines, and missiles, at temperatures up to what |
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Definition
| what is used as a coating to protect steel hardware, such as bolts, washers, and screws and as plating on electrical connectors |
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Definition
| what is used as protective plating |
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Term
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Definition
| when added to stainless steel alloys, the stress corrosion resistance increases with nickel contents above what |
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Term
| copper and copper based alloys |
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Definition
| what are generally used in avionic systems as contacts , springs, leads, connectors, printed circuit boards, conductors and wires |
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Definition
| what is used as plating material over copper in waveguards , miniature and mircominiature circuits, wires, contacts, high frequency cavities, tank circuits, and RF shielding |
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Definition
| traditionally considered the best coating for corrosion resistance and solderability what is used on printed circuits , semiconductors, leads and contacts |
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Definition
| what is a brittle gold aluminum compound formed when bonding gold to aluminum |
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Definition
| what has the best combination of solderability and corrosion resistance of any metallic coating |
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Definition
| graphic or carbon fiber composites are materials which consist of reinforcing fibers in a matrix made of organic resin, usually what |
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Definition
| what in addition to conformal coatings are used to envelop an avionic component module or assembly |
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Definition
| what compounds are used to encase a part of a component such as in an electrical connector |
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Definition
| rubbers and what else are used for insulations , seals, caps, gaskets, tubing, films, and coatings |
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Definition
| what is present in the air as a gas or as finely divided droplets of water |
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Definition
| what formation results from condensation of moisture |
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Definition
| the primary source of the world's salt is the ocean, which is what percentage of salt |
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Term
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Definition
| normal sea winds can carry from ten to how many pounds of sea salt per cubic mile of air |
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Definition
| what is a particularly active form of oxygen which is formed naturally during thunderstorms , by arcing in electrical devices, and by photochemical reactions in smog |
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Definition
| two ranges of solar radiation most damaging to materials are ultraviolet and what else |
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Term
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Definition
| most fungus growth is inhibited by what above temperatures |
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Term
| low pressure (high altitude) |
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Definition
| most military equipment is intended for service in what environments |
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Term
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Definition
| some of the least recognized contributors to corrosion are sand, dust and what else |
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Term
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Definition
| in arid regions such as deserts, small sand particles, are often blown as high as how many feet by the siroccos |
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Term
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Definition
| nonmetallic metals suffer the most damage from the hot desert climates, where air temperatures during the day may reach what |
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Definition
| the greatest challenge to aircraft industry is the design of equipment that is protected from corrosion and deterioration in the heat and humidity that prevails from what |
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Definition
| the tropical environment is sustained by long periods of heavy rainfall during which as how many inches of rain may fall |
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Term
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Definition
| what attack includes the action of bacteria fungi or mold |
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Term
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Definition
| bacteria may be either aerobic or what |
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Term
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Definition
| what bacteria requires oxygen to live |
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Term
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Definition
| ideal growth conditions for most fungi and bacteria are temperatures between 68F and what |
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Term
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Definition
| the greatest challenge to aircraft industry is the design of equipment that is protected from corrosion and deterioration in the heat and humidity that prevails from what |
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Term
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Definition
| the tropical environment is sustained by long periods of heavy rainfall during which as how many inches of rain may fall |
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Term
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Definition
| what attack includes the action of bacteria fungi or mold |
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Term
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Definition
| bacteria may be either aerobic or what |
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Term
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Definition
| what bacteria requires oxygen to live |
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Term
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Definition
| ideal growth conditions for most fungi and bacteria are temperatures between 68F and what |
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Term
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Definition
| the greatest challenge to aircraft industry is the design of equipment that is protected from corrosion and deterioration in the heat and humidity that prevails from what |
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Term
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Definition
| the tropical environment is sustained by long periods of heavy rainfall during which as how many inches of rain may fall |
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Term
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Definition
| what attack includes the action of bacteria fungi or mold |
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Term
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Definition
| bacteria may be either aerobic or what |
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Term
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Definition
| what bacteria requires oxygen to live |
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Term
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Definition
| ideal growth conditions for most fungi and bacteria are temperatures between 68F and what |
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Term
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Definition
| the greatest challenge to aircraft industry is the design of equipment that is protected from corrosion and deterioration in the heat and humidity that prevails from what |
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Term
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Definition
| the tropical environment is sustained by long periods of heavy rainfall during which as how many inches of rain may fall |
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Term
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Definition
| what attack includes the action of bacteria fungi or mold |
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Term
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Definition
| bacteria may be either aerobic or what |
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Term
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Definition
| what bacteria requires oxygen to live |
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Term
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Definition
| ideal growth conditions for most fungi and bacteria are temperatures between 68F and what |
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Term
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Definition
| two ranges of solar radiation most damaging to materials are ultraviolet and what else |
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Term
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Definition
| most fungus growth is inhibited by what above temperatures |
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Term
| low pressure (high altitude) |
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Definition
| most military equipment is intended for service in what environments |
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Term
|
Definition
| some of the least recognized contributors to corrosion are sand, dust and what else |
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Term
|
Definition
| in arid regions such as deserts, small sand particles, are often blown as high as how many feet by the siroccos |
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Term
|
Definition
| nonmetallic metals suffer the most damage from the hot desert climates, where air temperatures during the day may reach what |
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Term
|
Definition
| the greatest challenge to aircraft industry is the design of equipment that is protected from corrosion and deterioration in the heat and humidity that prevails from what |
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Term
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Definition
| the tropic environment is sustained by long periods of heavy rainfall, during which as many as how many inches of rain may fall |
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Term
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Definition
| what attack include action of bacteria fungi or mold |
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Term
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Definition
| bacteria may be either aerobic or what |
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Term
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Definition
| what bacteria requires oxygen to live |
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Term
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Definition
| ideal growth conditions for most fungi and bacteria are temperatures between 68F and what |
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Term
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Definition
| what is intended to protect equipment or components against corrosion, deterioration and physical damages during transportation and storage |
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Term
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Definition
| Equipment should be properly packaged in accordance with what to minimize damage during shipment |
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Term
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Definition
| most front line combat aircraft average how many hours per day in flight operations |
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