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Ductility normalized-strain-range partitioning life relations for creep-fatigue life predictionsTechniques utilizing strainrange partitioning may be used to estimate the effects of the environment on the high-temperature, low-cycle, creep-fatigue resistance of alloys. Three levels of ductility-normalized strainrange-partitioning life relations are discussed: (1) strainrange partitioning relations from ductility data, (2) strainrange partitioning relations scaled by ductility ratios, and (3) strainrange partitioning life relations with measured PP lines. The procedures have demonstrated good agreement with available creep-fatigue data.
Document ID
19780067830
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Halford, G. R. (NASA Lewis Research Center Cleveland, OH, United States)
Saltsman, J. F. (NASA Lewis Research Center Cleveland, OH, United States)
Hirschberg, M. H. (NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Metallic Materials
Meeting Information
Meeting: Conference on the Environmental degradation of engineering materials
Location: Blacksburg, VA
Start Date: October 10, 1977
End Date: October 12, 1977
Accession Number
78A51739
Distribution Limits
Public
Copyright
Other

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