Citation link: http://dx.doi.org/10.25819/ubsi/10179
DC FieldValueLanguage
dc.contributor.authorWildeis, Anna-
dc.contributor.authorChrist, Hans-Jürgen-
dc.contributor.authorBrandt, Robert-
dc.date.accessioned2022-09-22T11:13:44Z-
dc.date.available2022-09-22T11:13:44Z-
dc.date.issued2022de
dc.descriptionFinanziert aus dem Open-Access-Publikationsfonds der Universität Siegen für Zeitschriftenartikelde
dc.description.abstractThe crack initiation and short crack propagation in a martensitic spring steel were investigated by means of in-situ fatigue testing. Shot peened samples as well as untreated samples were exposed to uniaxial alternating stress to analyze the impact of compressive residual stresses. The early fatigue damage started in both sample conditions with the formation of slip bands, which subsequently served as crack initiation sites. Most of the slip bands and, correspondingly, most of the short fatigue cracks initiated at or close to prior austenite grain boundaries. The observed crack density of the emerging network of short cracks increased with the number of cycles and with increasing applied stress amplitudes. Furthermore, the prior austenite grain boundaries acted as obstacles to short crack propagation in both sample conditions. Compressive residual stresses enhanced the fatigue strength, and it is assumed that this beneficial effect was due to a delayed transition from short crack propagation to long crack propagation and a shift of the crack initiation site from the sample surface to the sample interior.en
dc.identifier.doihttp://dx.doi.org/10.25819/ubsi/10179-
dc.identifier.urihttps://dspace.ub.uni-siegen.de/handle/ubsi/2268-
dc.identifier.urnurn:nbn:de:hbz:467-22687-
dc.language.isoende
dc.sourceMetals ; 12 (7), 1085. - https://doi.org/10.3390/met12071085de
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherFatigue crack initiationen
dc.subject.otherShort fatigue crack propagationen
dc.subject.otherResidual stressen
dc.subject.otherMiniaturized testing deviceen
dc.subject.otherErmüdungsrissauslösungde
dc.subject.otherAusbreitung kurzer Ermüdungsrissede
dc.subject.otherEigenspannungde
dc.subject.otherMiniaturisierte Prüfeinrichtungde
dc.subject.swbFederstahlde
dc.subject.swbRissausbreitungde
dc.titleInfluence of residual stresses on the crack initiation and short crack propagation in a martensitic spring steelen
dc.typeArticlede
item.fulltextWith Fulltext-
ubsi.publication.affiliationDepartment Maschinenbaude
ubsi.source.doi10.3390/met12071085-
ubsi.source.issued2022de
ubsi.source.issuenumber7de
ubsi.source.pages16de
ubsi.source.placeBaselde
ubsi.source.publisherMDPIde
ubsi.source.titleMetalsde
ubsi.source.volume12de
ubsi.subject.ghbsZLQde
Appears in Collections:Publikationen aus der Universität Siegen
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