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Anodizing involves dipping the aluminum into a bath of chemicals and running an electric current through it, which helps to protect the metal against corrosion and makes it easier to adhere color.
FORBES: It's The iPhone 5's Aluminum Case That's Causing Problems For Apple and Foxconn
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Even if corrosion, metal fatigue and parts obsolescence were not taking a toll on the planes, potential adversaries are buying better and better air defenses that will make it harder for the bombers to reach their targets in future wars.
FORBES: Air Force Wants A Bomber That Balances Cost With Capability
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Its dimpled titanium skin, an unusual application of this strong, light and corrosion-resistant metal, contributes substantially, especially on the river side.
ECONOMIST: New architecture
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This is for when people want to provide corrosion protection to their metal assets.
CNN: The emerging world of self-healing materials
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So the correct paint has been applied to those areas that have suffered corrosion, and a bolt with the right kind of metal has been attached to a fitting that earlier caused the "minor" flood.
BBC: HMS Astute recovers from shaky start
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"I'm functional at this point, " said Lee, demonstrating a metal coin wrapper that can no longer turn because its bearings have seized from corrosion.
WSJ: NYC's Coney Island hopes for rebound after Sandy
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Corrosion and oxidation will be cleaned, taking the sculpture back to bare metal.
BBC: Henry Moore's House of Lords artwork restoration begins