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Influence of the position and size of various deterministic defects on the high cycle fatigue resistance of a 316L steel manufactured by laser powder bed fusion

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hal.structure.identifierLaboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.contributor.authorANDREAU, OLIVIER
hal.structure.identifierLaboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
dc.contributor.authorPESSARD, Etienne
hal.structure.identifierLaboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.contributor.authorKOUTIRI, Imade
hal.structure.identifierLaboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.contributor.authorPEYRE, Patrice
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorSAINTIER, Nicolas
dc.date.accessioned2021-05-14T09:30:46Z
dc.date.available2021-05-14T09:30:46Z
dc.date.issued2021
dc.identifier.issn0142-1123
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/75838
dc.description.abstractEnOptimized 316L steel samples were manufactured using laser powder bed fusion and tested in high cycle fatigue at R = 0.1. They showed microstructural crack initiation and outstanding fatigue properties. Additional fatigue testings were then carried out on samples containing deterministic defects of various sizes and positions. All results summarized in a Kitagawa-Takahashi diagram show that the critical defect size is around 20 µm for surface defects and reach 380 µm for internal pores. Fracture surface analysis revealed that the large size gap between surface and internal fatigue crack initiation could be linked to the local gaseous environment in the pores.
dc.language.isoen
dc.publisherElsevier
dc.subject.enFatigue
dc.subject.enAustenitic stainless steel
dc.subject.enLaser Powder Bed Fusion
dc.subject.enDefect
dc.subject.enPorosity
dc.title.enInfluence of the position and size of various deterministic defects on the high cycle fatigue resistance of a 316L steel manufactured by laser powder bed fusion
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ijfatigue.2020.105930
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph]
bordeaux.journalInternational Journal of Fatigue
bordeaux.page1-34
bordeaux.volume143
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-03159213
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03159213v1
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