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Fretting corrosion
| Oil glossary |
Can take place when two metals are held in contact and subjected to repeated small sliding, relative motions. other names for this type of corrosion include wear oxidation, friction oxidation, chafing, and brinelling.
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Фреттинг-коррозия, русский
(1) ускоренное изнашивание при трении между соприкасающимися поверхностями как результат коррозии и небольшого колебательного движения между двумя поверхностями. (2) фреттинг, в котором доминирует химическая реакция. фреттинг-коррозия часто характеризуется удалением частиц и последующим формированием оксидов, которые являются часто абразивом, и таким образом увеличивают износ. фреттинг-коррозия может вовлекать другие продукты химической реакции, которые могут быть и не абразивными.
Corrosion, английский
- Corrosion
- The decay and loss of a metal due to a chemical reaction between the metal and its environment. it is a transformation process in which the metal passes from its elemental form to a combined (or compound) form.
- Коррозия
- The deterioration of metal or of concrete by chemical or electrochemical reaction resulting from exposure to weathering, moisture, chemicals, or other agents in the environment in which it is placed.
- Reaction between metal and oxygen accelerated by the presence of salt, water or intense heat
- The decay and loss of metal caused by a chemical reaction between the metal and another substance, such as contaminants in a lubricant.
- The deterioration of a metal by chemical or electrochemical reaction with its environment or other material.
- Loss or degradation of metal caused by chemical reaction and appearing as pitting and loss of material. galvanic corrosion is caused by electrical contact between dissimilar metals and by entrapped fluids that permit the electronic interchange of ions between adjoining metal surfaces. mechanisms of corrosion include crevice corrosion and stress corrosion in the form of cracking.
- Потеря или деградация металла, вызванная химической реакцией и проявляющаяся в виде питтинга и потери материала. гальваническая коррозия вызвана электрическим контактом между разнородными металлами и захваченными жидкостями, которые обеспечивают электронный обмен ионами между соседними металлическими поверхностями. механизмы коррозии включают щелевую коррозию и коррозию под напряжением в виде растрескивания.
- Loss or degradation of metal because of chemical reaction. corrosion, crevice: corrosion found in tight crevices or pores (pits) and accelerated by galvanic activity from high ion concentrations. corrosion-erosion: simultaneous occurrence of erosion and corrosion. corrosion, fretting: corrosion facilitated by fretting, particularly where a protective surface has been chafed in a corrosive environment. corrosion, poultice: corrosion occurring under a layer of foreign material (for example, under mud in automobile rocker panels).
- Deterioration of a metal by chemical or electrochemical reaction with its environment. removal of material by chemical attack, such as the rusting of automobile components.1 crack, cold: cracks that occur in a casting after solidification, due to excessive stress generally resulting from nonuniform cooling.1 crack, cooling: cracks in bars of alloy or tool steels resulting from uneven cooling after heating or hot rolling. they are usually deep and lie in a longitudinal direction, but are usually not straight.1 crack, grinding: thermal cracks caused by local overheating of the surface being ground.1 crack, hot: cracks that develop before the casting has completely cooled, as contrasted with cold cracks, that develop after solidification.1 also called hot tear. crack, transverse: cracks at right angles to the length of the test object.1 crack, weld: cracks in weld fusion zones or adjacent base metal. usually a result of thermal expansion or contraction stresses related to temperature changes during welding.1
- Deterioration of a metal by chemical or electrochemical reaction with its environment. removal of material by chemical attack, such as the rusting of automobile components. corrosion, crevice: localized corrosion found in regions where part or assembly geometry limits full exposure to the environment.
- Deterioration of a metal by chemical or electrochemical reaction with its environment, or removal of material by chemical attack (for example, rusting of ferrous automobile components). corrosion, crevice: localized corrosion found in regions where part or assembly geometry limits full exposure to the environment.
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Corrosion, английский
- Corrosion
- The decay and loss of a metal due to a chemical reaction between the metal and its environment. it is a transformation process in which the metal passes from its elemental form to a combined (or compound) form.
- Коррозия
- The deterioration of metal or of concrete by chemical or electrochemical reaction resulting from exposure to weathering, moisture, chemicals, or other agents in the environment in which it is placed.
- Reaction between metal and oxygen accelerated by the presence of salt, water or intense heat
- The decay and loss of metal caused by a chemical reaction between the metal and another substance, such as contaminants in a lubricant.
- The deterioration of a metal by chemical or electrochemical reaction with its environment or other material.
- Loss or degradation of metal caused by chemical reaction and appearing as pitting and loss of material. galvanic corrosion is caused by electrical contact between dissimilar metals and by entrapped fluids that permit the electronic interchange of ions between adjoining metal surfaces. mechanisms of corrosion include crevice corrosion and stress corrosion in the form of cracking.
- Потеря или деградация металла, вызванная химической реакцией и проявляющаяся в виде питтинга и потери материала. гальваническая коррозия вызвана электрическим контактом между разнородными металлами и захваченными жидкостями, которые обеспечивают электронный обмен ионами между соседними металлическими поверхностями. механизмы коррозии включают щелевую коррозию и коррозию под напряжением в виде растрескивания.
- Loss or degradation of metal because of chemical reaction. corrosion, crevice: corrosion found in tight crevices or pores (pits) and accelerated by galvanic activity from high ion concentrations. corrosion-erosion: simultaneous occurrence of erosion and corrosion. corrosion, fretting: corrosion facilitated by fretting, particularly where a protective surface has been chafed in a corrosive environment. corrosion, poultice: corrosion occurring under a layer of foreign material (for example, under mud in automobile rocker panels).
- Deterioration of a metal by chemical or electrochemical reaction with its environment. removal of material by chemical attack, such as the rusting of automobile components.1 crack, cold: cracks that occur in a casting after solidification, due to excessive stress generally resulting from nonuniform cooling.1 crack, cooling: cracks in bars of alloy or tool steels resulting from uneven cooling after heating or hot rolling. they are usually deep and lie in a longitudinal direction, but are usually not straight.1 crack, grinding: thermal cracks caused by local overheating of the surface being ground.1 crack, hot: cracks that develop before the casting has completely cooled, as contrasted with cold cracks, that develop after solidification.1 also called hot tear. crack, transverse: cracks at right angles to the length of the test object.1 crack, weld: cracks in weld fusion zones or adjacent base metal. usually a result of thermal expansion or contraction stresses related to temperature changes during welding.1
- Deterioration of a metal by chemical or electrochemical reaction with its environment. removal of material by chemical attack, such as the rusting of automobile components. corrosion, crevice: localized corrosion found in regions where part or assembly geometry limits full exposure to the environment.
- Deterioration of a metal by chemical or electrochemical reaction with its environment, or removal of material by chemical attack (for example, rusting of ferrous automobile components). corrosion, crevice: localized corrosion found in regions where part or assembly geometry limits full exposure to the environment.
Corrosion, английский
Corrosion, французский
Corrosion activity, английский
Corrosion allowance, английский
Допуск на коррозию
Corrosion border, английский
Corrosion cap, английский
Антикоррозийный колпак (для защиты от коррозии уотья временно оставляемой подводной скважины)
Corrosion coupon, английский
Corrosion coupons, английский
Corrosion embrittlement, английский
- The severe loss of ductility of a metal, resulting from corrosive attack, usually intergranular and often not visually apparent.
- Severe loss of ductility of a metal, resulting from corrosive attack, usually intergranular and often not visually apparent.
Corrosion erosion, английский
- Accelerated loss of material because of the simultaneous actions of erosion and corrosion when exposed to a moving corrosive liquid. corrosion, exfoliation: corrosion that progresses parallel to the outer surface of the metal along grain boundaries oriented in the rolling direction causing layers of the metal to be elevated by the formation of corrosion product. usually associated with aluminum products.
- Accelerated loss of material because of the simultaneous actions of erosion and corrosion when exposed to a moving corrosive liquid. corrosion, exfoliation: corrosion that progresses parallel to the outer surface of the metal along grain boundaries oriented in the rolling direction causing layers of the metal to be elevated by the formation of corrosion product of a larger volume. usually associated with aluminum products.
Corrosion fatigue, английский
- Effect of the application of repeated or fluctuating stresses in a corrosive environment characterized by shorter life than would be encountered as a result of either the repeated or fluctuating stresses alone or the corrosive environment alone.
- Fatigue cracking caused by repeated load applications on metal in a corrosive environment. corrosion, fretting: wear caused by repeated small relative movements between mating surfaces. transferred material and freshly exposed surfaces quickly corrode, often forming a product harder than the parent material, thus increasing the wear rate. see also false brinelling. corrosion, poultice: corrosion occurring under a layer of foreign material (for example, under mud in automobile rocker panels).
- Fatigue cracking caused by repeated load applications on metal in a corrosive environment. glossary c-d 495 corrosion, fretting: wear caused by repeated small relative movements between mating surfaces. transferred material and freshly exposed surfaces quickly corrode, often forming a product harder than the parent material, thus increasing the wear rate. see also cocoa; wear, fretting. corrosion, intergranular: corrosion occurring preferentially at grain boundaries. corrosion, poultice: corrosion occurring under a layer of foreign material (for example, under mud in automobile rocker panels).
Corrosion inhibitor, английский
- Additive for protecting lubricated metal surfaces against chemical attack by water or other contaminants. there are several types of corrosion inhibitors. polar compounds wet the metal surface preferentially, protecting it with a film of oil. other compounds may absorb water by incorporating it in a water-in-oil emulsion so that only the oil touches the metal surface. another type of corrosion inhibitor combines chemically with the metal to present a non-reactive surface.
- An additive that protects lubricated metal surfaces against chemical attack by water or other contaminants.
- Additive that protects metal surfaces from chemical attack by water or other contaminants.
Corrosion interaction, английский
Коррозия блуждающими токами см. также corrosion interference 87 . corrosion interference cm. corrosion interaction
Corrosion monitor, английский
Устройство для непрерывного или периодического измерения коррозии s9` corrosion wheel коррозионное колесо, колесо гарднера
Corrosion monitors, английский
Corrosion potential, английский
Corrosion potential (ecorr), английский
Corrosion product, английский
Corrosion protection, английский
Corrosion rate, английский
Brinelling, английский
- Permanent deformation of the bearing surfaces where the rollers (or balls) contact the races. brinelling results from excessive load or impact on stationary bearings. it is a form of mechanical damage in which metal is displaced or upset without attrition.
- Repeated stripe indentations made by a spherical object. false brinelling refers to a type of surface wear.
- Permanent surface deformation caused by contact stress above the material’s limit. compare false brinelling.
- Permanent surface deformation caused by contact stress above the material’s limit. compare wear, fretting.
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Ftir, английский
- Fourier transform infrared spectroscopy. a test where infrared light absorption is used for assessing levels of soot, sulfates, oxidation, nitro-oxidation, glycol, fuel, and water contaminants.
- Flight test instrumentation requirements
- Нарушение полного внутреннего отражения (в волоконной оптике)
Free water, английский
- Water droplets or globules in the system fluid that tend to accumulate at the bottom or top of the system fluid depending on the fluid’s specific gravity.
- Water produced with oil. it usually settles out within five minutes when the well fluids become stationary in a settling space within a vessel. g
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