NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
On the cyclic stress-strain behaviour of a Ni-base superalloy at room temperatureThe cyclic stress-strain behavior of Nimonic alloy PE16 was studied at room temperature and at different aging conditions to determine whether the plateau in the cyclic stress-strain curve (CSSC) reported by Arbuthnot (1982) is typical of the room temperature behavior and/or some specific initial microstructural states. Specimen blanks were heat-treated in batches in Ar/H2 (98/2) atmosphere to produce gamma-prime precipitates of different average sizes, but with the volume fraction of gamma-prime precipitates kept constant at about 7 percent at all the heat-treatment conditions. Total axial strain controlled LCF tests were conducted under fully reversed loading (R = -1) at a constant strain rate of 0.004/s, using a servohydraulic machine. The load response in tension and compression was recorded continually, and stress-strain hysteresis loops were recorded at frequent intervals. In the present investigation, the CSSCs of the P16 alloy at room temperature did not display the plateaus reported by Arbuthnot.
Document ID
19880037294
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Singh, Vakil
(Hahn-Meitner-Inst. fuer Kernforschung Berlin, Germany)
Wahi, R. P.
(Hahn-Meitner-Institut fuer Kernforschung Berlin GmbH Federal Republic of Germany, United States)
Chen, W.
(Berlin, Technische Universitaet Federal Republic of Germany, United States)
Yun, H. M.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Scripta Metallurgica
Volume: 22
ISSN: 0036-9748
Subject Category
Metallic Materials
Accession Number
88A24521
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available