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B218 Weld Filler Wire Characterization for Al-Li Alloy 2195NASA Marshall Space Flight Center, Lockheed Martin Space Systems- Michoud Operations, and McCook Metals have developed an aluminum-copper weld filler wire for fusion welding aluminum lithium alloy 2195. The aluminum-copper based weld filler wire has been identified as B218, a McCook Metals designation. B218 is the result of six years of weld filler wire development funded by NASA, Lockheed Martin, and McCook Metals. The filler wire chemistry was developed to produce enhanced 2195 weld and repair weld mechanical properties over the 4043 aluminum-silicon weld filler wire, which is currently used to weld 2195 on the Super Lightweight External Tank for the NASA Space Shuttle Program. An initial characterization was performed consisting of a repair weld evaluation using B218 and 4043 weld filler wires. The testing involved room temperature and cryogenic repair weld tensile testing along with fracture toughness testing. From the testing, B218 weld filler wire produce enhanced repair weld tensile strength, ductility, and fracture properties over 4043. B218 weld filler wire has proved to be a superior weld filler wire for welding aluminum lithium alloy 2195 over 4043.
Document ID
20000068441
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Bjorkman, Gerry (Lockheed Martin Michoud Space Systems Huntsville, AL United States)
Russell, Carolyn (NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2000
Subject Category
Metals And Metallic Materials
Meeting Information
Meeting: Aeromat 2000 Conference
Location: Seattle, WA
Country: United States
Start Date: June 26, 2000
End Date: June 29, 2000
Funding Number(s)
CONTRACT_GRANT: NAS8-36200
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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