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The decrease in yield strength in NiAl due to hydrostatic pressureThe decrease in yield strength in NiAl due to hydrostatic pressure is examined via a comparison of the tensile flow behavior in the low strain regime at 0.1 MPa for NiAl which was cast, extruded, and annealed for 2 hr at 827 C in argon and very slowly cooled to room temperature. Pressurization to 1.4 GPa produces a subsequent reduction at 0.1 MP in proportional limit by 40 percent as well as a 25-percent reduction in the 0.2-percent offset yield strength, while pressurization with lower pressures produces a similar reduction, although smaller in magnitude.
Document ID
19920056366
Document Type
Reprint (Version printed in journal)
Authors
Margevicius, R. W. (NASA Lewis Research Center Cleveland, OH, United States)
Lewandowski, J. J. (NASA Lewis Research Center Cleveland, OH, United States)
Locci, I. (Case Western Reserve University Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1992
Publication Information
Publication: Scripta Metallurgica et Materialia
Volume: 26
Issue: 11 J
ISSN: 0956-716X
Subject Category
METALLIC MATERIALS
Funding Number(s)
CONTRACT_GRANT: N00014-91-J-1370
Distribution Limits
Public
Copyright
Other