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Inelastic deformation and dislocation structure of a nickel alloy - Effects of deformation and thermal historiesInelastic deformation behavior of the cast Ni-base alloy, B1900 + Hf, was investigated using data from step-temperature tensile tests and thermomechanical cyclic tests in the temperature ranges 538-760 C and 760-982 C. The deformation results were correlated with the dislocation structures of deformed specimens, identified by TEM. It was found that, in the 760-982 C temperature range, there are no thermal history effects in the inelastic deformation behavior of B1900 + Hf. In the 538-760 range, anomalous cyclic hardening and, possibly, thermal history effects were observed in thermomechanically deformed alloy, caused by sessile (010) dislocations in the gamma-prime phase.
Document ID
19890062942
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chan, K. S.
(Southwest Research Inst. San Antonio, TX, United States)
Page, R. A.
(Southwest Research Institute San Antonio, TX, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1988
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 19A
ISSN: 0360-2133
Subject Category
Metallic Materials
Accession Number
89A50313
Funding Number(s)
CONTRACT_GRANT: NAS3-23925
Distribution Limits
Public
Copyright
Other

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