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Metallurgical instabilities during the high temperature low cycle fatigue of nickel-base superalloysAn investigation is made of the microstructural instabilities that affect the high temperature low cycle fatigue (LCF) life of nickel-base superalloys. Crack initiation processes, provoked by the formation of carbides and the coarsening of the grains of the material at high temperatures are discussed. Experimental results are examined, and it is concluded that LCF behavior can be understood more fully only if details of the material and its dynamic behavior at high temperatures are considered. The effects of high stress, dislocation debris, and increasing environmental damage on the life of the alloy are discussed.
Document ID
19830040801
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Antolovich, S. D.
(Cincinnati Univ. OH, United States)
Jayaraman, N.
(Cincinnati, University Cincinnati, OH, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Publication Information
Publication: Materials Science and Engineering
Volume: 57
Subject Category
Metallic Materials
Accession Number
83A22019
Funding Number(s)
CONTRACT_GRANT: AF-AFOSR-80-0065
CONTRACT_GRANT: NSG-3263
Distribution Limits
Public
Copyright
Other

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