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A surface-analytical examination of stringer particles in aluminum-lithium-copper alloysA surface analytical examination of powder metallurgy processed Al-Li-Cu alloys was conducted. The oxide stringer particles often found in these alloys are characterized. Particle characterization is important to more fully understand their impact on the stress corrosion and fracture properties of the alloy. The techniques used where SIMS (Secondary Ion Mass Spectroscopy) and SAM (Scanning Auger Microscopy). The results indicate that the oxide stringer particles contain both Al and LI with relatively high Li content and the Li compounds may be associated with the stringer particles, thereby locally depleting the adjacent matrix of Li solute.
Document ID
19850044967
Document Type
Conference Paper
Authors
Larson, L. A. (Stanford Joint Inst. for Surface and Microstructural Research Moffett Field, CA, United States)
Avalos-Borja, M. (NASA Ames Research Center; Stanford Joint Institute for Surface and Microstructure Research Moffett Field, CA, United States)
Pizzo, P. P. (San Jose State University San Jose, CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Subject Category
METALLIC MATERIALS
Meeting Information
Aluminum-lithium alloys II(Monterey, CA)
Funding Number(s)
CONTRACT_GRANT: NCC2-155
CONTRACT_GRANT: NCC2-176
Distribution Limits
Public
Copyright
Other