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Fatigue failure of hydrogen embrittled high strength steelsResults of an experimental investigation are presented concerning the fracture behavior of cathodically charged, quenched and tempered martensitic steels under cyclic load conditions. Introduction of H2 by cathodic charging reduced fatigue life by as much as 60%. It is proposed that subsurface transverse fatigue cracks nucleate simultaneously at multiple sites, such as at microcracks, voids, or inclusions. Fatigue crack growth then occurs on planes perpendicular to the major applied stress axis in the presence of the critical combination of applied external stress and hydrogen.
Document ID
19750055037
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kim, Y. G.
(NASA Lewis Research Center Alloys and Refractory Compounds Section, Cleveland, Ohio, United States)
Aleszka, J.
(U.S. Army, Construction Engineering Research Laboratory, Champaign Ill., United States)
Date Acquired
August 8, 2013
Publication Date
July 1, 1975
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 6A
Subject Category
Metallic Materials
Accession Number
75A39109
Distribution Limits
Public
Copyright
Other

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