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Compression, bend, and tension studies on forged Al67Ti25Cr8 and Al66Ti25Mn(g) L1(2) compoundsCast, homogenized, and isothermally forged aluminum-rich L1(2) compounds Al67Ti25Cr8 and Al66Ti25Mn(g) were tested in compression as a function of temperature and as a function of strain rate at elevated temperatures (1000 K and 1100 K). Three-point bend specimens were tested as a function of temperature in the range 300 K to 873 K. Strain gages glued on the tensile side of the ambient and 473 K specimens enabled direct strain measurements. A number of 'buttonhead' tensile specimens were electro-discharge machined, fine polished, and tested between ambient and 1073 K for yield strength and ductility as a function of temperature. Scanning electron microscope (SEM) examination of fracture surfaces from both the bend and tensile specimens revealed a gradual transition from transgranular cleavage to intergranular failure with increasing temperature.
Document ID
19920048142
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kumar, K. S.
(NASA Lewis Research Center Cleveland, OH, United States)
Brown, S. A.
(Martin Marietta Laboratories Baltimore, MD, United States)
Whittenberger, J. D.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Metallic Materials
Meeting Information
Meeting: MRS Symposium
Location: Boston, MA
Country: United States
Start Date: November 27, 1990
End Date: November 30, 1990
Accession Number
92A30766
Funding Number(s)
CONTRACT_GRANT: NAS3-25787
Distribution Limits
Public
Copyright
Other

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