Superior effects of hybrid laser shock peening and ultrasonic nanocrystalline surface modification on fatigue behavior of additive manufactured AlSi10Mg

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dc.authoridbagherifard, sara/0000-0002-5757-2785
dc.authoridGUAGLIANO, MARIO/0000-0003-1958-3974
dc.contributor.authorMaleki, Erfan
dc.contributor.authorBagherifard, Sara
dc.contributor.authorUnal, Okan
dc.contributor.authorJam, Alireza
dc.contributor.authorShao, Shuai
dc.contributor.authorGuagliano, Mario
dc.contributor.authorShamsaei, Nima
dc.date.accessioned2024-09-29T16:00:47Z
dc.date.available2024-09-29T16:00:47Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe surface texture of metallic parts produced by laser powder bed fusion (L-PBF) in the as-built condition detrimentally affects their mechanical properties, especially fatigue behavior. Accordingly, applying surface post-treatments has become an attractive approach to improve the mechanical performance of these materials. In the present study, both the individual and combined effects of post-processing methods, i.e., laser shock peening (LSP) and ultrasonic nanocrystalline surface modification (UNSM) with the same intensity of 10-12 A [0.001 in.], were systematically investigated on mechanical properties and fatigue behavior of L-PBF AlSi10Mg speci-mens. A wide range of experiments involving microstructural characterization, hardness and residual stresses measurements, porosity and surface texture analyses, tensile tests, and rotating bending fatigue tests were conducted. The results revealed that the hybrid LSP + UNSM process resulted in significant improvement in mechanical properties and fatigue behavior due to (i) sub-surface pores closure up to the depth of 517 mu m, (ii) 60 % surface hardness improvement, (iii) inducing-420 MPa surface compressive residual stresses, and (iv) surface roughness reduction up to 70 %. The fatigue life was improved up to 75, 56, and 35-fold compared to the as-built state after applying LSP + UNSM, UNSM, and LSP treatments, respectively.en_US
dc.description.sponsorshipNational Institute of Standards and Technology (NIST) [70NANB18H220]en_US
dc.description.sponsorshipThis material is based upon work partially supported by the National Institute of Standards and Technology (NIST) under Award No. 70NANB18H220.en_US
dc.identifier.doi10.1016/j.surfcoat.2023.129512
dc.identifier.issn0257-8972
dc.identifier.issn1879-3347
dc.identifier.scopus2-s2.0-85152628650en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.surfcoat.2023.129512
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5357
dc.identifier.volume463en_US
dc.identifier.wosWOS:000985298100001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofSurface & Coatings Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAdditive manufacturing (AM)en_US
dc.subjectAlSi10Mgen_US
dc.subjectLaser shock peening (LSP)en_US
dc.subjectUltrasonic nanocrystalline surface modification (UNSM)en_US
dc.subjectFatigueen_US
dc.titleSuperior effects of hybrid laser shock peening and ultrasonic nanocrystalline surface modification on fatigue behavior of additive manufactured AlSi10Mgen_US
dc.typeArticleen_US

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