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How surface damage removal affects fatigue lifeThe effect of the removal of work hardened surface layers from specimens of 2024-T4 aluminum alloy and AISI-4130 steel on their fatigue lives has been investigated. Specimens were fatigued at selected stress levels for a given number of cycles, and the surface layer was removed followed by subsequent fatigue cycling. Results confirm that when a material is subjected to fatigue loading, damage accumulates in the surface layers in the form of work hardening. Removal of the surface layer brings the specimen back to its pre-fatigued condition.
Document ID
19890030250
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jeelani, S.
(Tuskegee Inst. AL, United States)
Scott, M. A.
(Tuskegee University AL, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1988
Publication Information
Publication: International Journal of Fatigue
Volume: 10
ISSN: 0142-1123
Subject Category
Metallic Materials
Accession Number
89A17621
Funding Number(s)
CONTRACT_GRANT: NAG8-20
Distribution Limits
Public
Copyright
Other

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