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Cleavage crystallography of liquid metal embrittled aluminum alloysThe crystallography of liquid metal-induced transgranular cleavage in six aluminum alloys having a variety of microstructures has been determined via Laue X-ray back reflection. The cleavage crystallography was independent of alloy microstructure, and the cleavage plane was 100-plane oriented in all cases. It was further determined that the cleavage crystallography was not influenced by alloy texture. Examination of the fracture surface indicated that there was not a unique direction of crack propagation. In addition, the existence of 100-plane cleavage on alloy 2024 fracture surfaces was inferred by comparison of secondary cleavage crack intersection geometry on the 2024 surfaces with the geometry of secondary cleavage crack intersections on the test alloys.
Document ID
19910064398
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Reynolds, A. P.
(NASA Langley Research Center Hampton, VA, United States)
Stoner, G. E.
(Virginia, University Charlottesville, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1991
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 22A
ISSN: 0360-2133
Subject Category
Metallic Materials
Accession Number
91A49021
Distribution Limits
Public
Copyright
Other

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