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dc.creatorVuherer, T.
dc.creatorMilović, Ljubica
dc.creatorGliha, V.
dc.date.accessioned2021-03-10T11:33:04Z
dc.date.available2021-03-10T11:33:04Z
dc.date.issued2011
dc.identifier.issn0142-1123
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/1855
dc.description.abstractIn this investigation we look at the influence of the local residual stresses caused by Vickers-pyramid indenting on the initiation and early propagation of small cracks from indentations in coarse-grain martensitic steel. The size of these indentations is comparable to the grain size. Specimens with and without a local residual stress field were tested on a rotary bending machine. A focused ion beam and a scanning electron microscope were used to reveal the influence of those stresses on the location of the cracks' initiation and the mechanism of the small-crack propagation. The existing local residual stresses assist in the initiation of two cracks at a level lower than the fatigue limit. The early small-crack propagation is gradually obstructed by the residual stress-field configuration until the cracks become non-propagating cracks. At levels higher than the fatigue limit, both cracks succeed in breaking through the compressive stressed domain and link together. From that moment the crack begins to behave as a long crack, penetrating outside the indentation into the tensile-stressed domains.en
dc.publisherElsevier Sci Ltd, Oxford
dc.rightsrestrictedAccess
dc.sourceInternational Journal of Fatigue
dc.subjectCoarse grainen
dc.subjectVickers indentationen
dc.subjectResidual stressesen
dc.subjectCrack initiationen
dc.subjectCrack propagationen
dc.titleBehaviour of small cracks during their propagation from Vickers indentations in coarse-grain steel: An experimental investigationen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage1513
dc.citation.issue12
dc.citation.other33(12): 1505-1513
dc.citation.rankM21
dc.citation.spage1505
dc.citation.volume33
dc.identifier.doi10.1016/j.ijfatigue.2011.06.008
dc.identifier.rcubconv_3685
dc.identifier.scopus2-s2.0-80052754124
dc.identifier.wos000296414100001
dc.type.versionpublishedVersion


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