Aluminum alloy with intergranular corrosion resistance and methods of making and use
Type: Patent
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Number: 06660107
Market: Aerospace,Alumina,Aluminum Ingot,Automotive,Building & construction,Commercial transportation,Industrial products,Packaging and consumer,Oil & Gas,Consumer electronics,Sustainability
Technology: Alloy product & process
Year: 2003
Abstract: A corrosion resistant aluminum alloy has controlled amounts of iron, manganese, chromium, and titanium along with levels of copper, silicon, nickel, and no more than impurity levels of zinc. The alloy chemistry is tailored such that the electrolytic potential of the grain boundaries matches the alloy matrix material to reduce intergranular corrosion. The alloy is particularly suited for the manufacture of tubing for heat exchangers using extrusion and brazing techniques.
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