Effect of precipitates on the corrosion-fatigue crack initiation of ISO 5832-9 stainless steel biomaterial

dc.creatorGiordani, EJ
dc.creatorGuimaraes, VA
dc.creatorPinto, TB
dc.creatorFerreira, I
dc.date2004
dc.dateOCT
dc.date2014-11-17T23:07:03Z
dc.date2015-11-26T16:47:29Z
dc.date2014-11-17T23:07:03Z
dc.date2015-11-26T16:47:29Z
dc.date.accessioned2018-03-28T23:33:40Z
dc.date.available2018-03-28T23:33:40Z
dc.identifierInternational Journal Of Fatigue. Elsevier Sci Ltd, v. 26, n. 10, n. 1129, n. 1136, 2004.
dc.identifier0142-1123
dc.identifierWOS:000223223300010
dc.identifier10.1016/j.ijfatigue.2004.03.002
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/64230
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/64230
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/64230
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1274878
dc.descriptionThe correlation between the microstructure and fatigue crack initiation behavior (in air and 0.9% NaCl solution) of ISO 5832-9 austenitic stainless steel biomaterial was investigated. A combination of techniques such as extraction of precipitates, SEM, EDS and X-ray diffraction was found to be very useful to characterize Z-phase precipitates, which are abundant in this steel. An analysis of fatigue crack initiation, using SEM, revealed that fatigue and corrosion-fatigue cracking initiate preferentially in the elongated Z-phase precipitates, which are parallel to the tensile direction, and in coarse precipitates usually associated with M-rich nonmetallic inclusions. Crack initiation is caused by particle rupture rather than by separation of the particle/matrix interface. The findings indicate that coarse Z-phase precipitates and nonmetallic inclusions are detrimental to the fatigue properties of the steel. These microstructural constituents accelerate the initiation of fatigue and especially corrosion-fatigue cracks. (C) 2004 Elsevier Ltd. All rights reserved.
dc.description26
dc.description10
dc.description1129
dc.description1136
dc.languageen
dc.publisherElsevier Sci Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationInternational Journal Of Fatigue
dc.relationInt. J. Fatigue
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectbiomaterial
dc.subjectstainless steel
dc.subjectcorrosion-fatigue
dc.subjectcrack initiation
dc.subjectAqueous Environments
dc.subjectOrthopedic Implants
dc.subjectNitrogen
dc.subjectMetals
dc.subjectMechanisms
dc.subjectFailure
dc.subjectDevices
dc.subjectGrowth
dc.titleEffect of precipitates on the corrosion-fatigue crack initiation of ISO 5832-9 stainless steel biomaterial
dc.typeArtículos de revistas


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