New Aluminum Lithium Alloys for Aerospace Applications
Type: Technical Paper
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Market: Aerospace
Technology: Alloy product & process,Extrusion,Sheet/plate
Year: 2007
Abstract: This paper discusses two aluminum-lithium alloys for aerospace applications, 2099 and 2199, including the relationship between their alloying elements and thermal-mechanical processing, to the alloy’s properties. The paper also includes selected properties of these alloys in sheet, plate and extrusion forms. Finally, a trade study conducted between Alcoa and Bombardier using these alloys is discussed which highlights the weight and performance benefits to an aircraft when alloys with optimized properties are selected for specific aircraft applications.
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