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Stress Corrosion Corrosion Fatigue Fretting Corrosion Heat Treatment |
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Corrosion Limits |
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Corrosion, however slight, is damage. Therefore, corrosion damage is clasified under the four standard types, as is any other damage. These types are (1) Negligible damage, (2) damage repairable by patching, (3) damage repairable by insertion, and (4) damage necessitating replacement of parts. The term "negligible", as used here, does not imply that little or nathing shoild be done. The corroded surface should be cleaned, treated, and painted as appropriate. Negligible damage, generally, is corrosion which has scarred or caten away the surface protective coats and begun to etch the metal. Corrosion damage extending to classifications of " repairable by patching " and " repairable by insertion " should be repaired in accordance with the applicable structural repair manual. When corrosion damage exceeds the damage limits to the extent that repair is not possible, the component or structure should be replaced. |
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| Corrosion of ferrous metals. | ||
| One of the most familiar types of corrosion is ferrous oxide,.. | ||
| Corrosion of aluminum and aluminum alloys. | ||
| Corrosion attack on aluminum surfaces is usually quite obvious, | ||
| Corrosion of magnesium alloy | ||
| Magnesium is the most chemically active of the metals used,. | ||
| Treatment of titanium and titanium alloys. | ||
| Attack on titanium surfaces is generally difficult to detect | ||
| Protection of dissimilar metal contacts. | ||
| Certain metals are subject to corrosion when placed in contact with other metals | ||
| Processes and materials used in corrosion control. | ||
| Aircraft parts are almost always given some type surface finish | ||
| Chemical treatment. | ||
| Parco Lubrizing in a chemical treatment for iron and steel parts | ||
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Inspection Corrosion Prone Areas Corrosion Limits |
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