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Record Details

Record 98 of 9936
Transmission electron microscopy characterization of microstructural features in aluminum-lithium-copper alloys
Author and Affiliation:
Avalos-Borja, M.(Stanford Joint Inst. for Surface and Microstructural Research, Moffett Field, CA, United States)
Larson, L. A.(NASA Ames Research Center, Stanford Joint Institute for Surface and Microstructure Research)
Pizzo, P. P.(San Jose State University, San Jose, CA, United States)
Abstract: A transmission electron microscopy (TEM) examination of aluminum-lithium-copper alloys was conducted. The principal purpose is to characterize the nature, size, and distribution of stringer particles which result from the powder metallurgy (P/M) processing of these alloys. Microstructural features associated with the stringer particles are reported that help explain the stress corrosion susceptibility of the powder metallurgy-processed Al-Li-Cu alloys. In addition, matrix precipitaton events are documented for a variety of heat treatments and process variations. Hot rolling is observed to significantly alter the nature of matrix precipitation, and the observations are correlated with concomitant mechanical property variations.
Publication Date: Jan 01, 1984
Document ID:
19850044966
(Acquired Nov 28, 1995)
Accession Number: 85A27117
Subject Category: METALLIC MATERIALS
Document Type: Conference Paper
Publication Information: (SEE A85-27101 11-26)
Publisher Information: United States
Meeting Information: Aluminum-lithium alloys II; April 12-14, 1983; Monterey, CA
Financial Sponsor: NASA; United States
Organization Source: Stanford Joint Inst. for Surface and Microstructural Research; Moffett Field, CA, United States
San Jose State Univ.; CA, United States
Description: 15p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ELECTRON MICROSCOPY; PARTICLE SIZE DISTRIBUTION; POWDER METALLURGY; STRESS CORROSION CRACKING; STRINGERS; ALUMINUM ALLOYS; COPPER ALLOYS; HEAT TREATMENT; LITHIUM ALLOYS; MECHANICAL PROPERTIES; MICROSTRUCTURE; PRECIPITATION (CHEMISTRY); TRANSMISSION ELECTRON MICROSCOPY
Imprint And Other Notes: IN: Aluminum-lithium alloys II; Proceedings of the Second International Aluminum-Lithium Conference, Monterey, CA, April 12-14, 1983 (A85-27101 11-26). Warrendale, PA, Metallurgical Society of AIME, 1984, p. 287-301. Previously announced in STAR as N84-11255.
Availability Source: Other Sources
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