Effects of Laser Shock Peening on Corrosion Resistance of Additive Manufactured AlSi10Mg

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dc.authoridMaleki, Erfan/0000-0002-5995-1869
dc.authoridShao, Shuai/0000-0002-4718-2783
dc.contributor.authorMaleki, Erfan
dc.contributor.authorUnal, Okan
dc.contributor.authorShao, Shuai
dc.contributor.authorShamsaei, Nima
dc.date.accessioned2024-09-29T16:08:05Z
dc.date.available2024-09-29T16:08:05Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractMechanical properties of Al alloys make them an ideal candidate for different sections of marine, aerospace, automotive, etc. industries. Recently taking the advantages of additive manufacturing (AM), many complex infrastructures/components can be fabricated with very high design freedom via Al alloys. Although Al alloys have good natural corrosion resistance, however improving this property attracts lots of attention in the past few years. Post-processing methods can play a key role for addressing the issues related to internal and surface anomalies associated with as-built AM parts. Generally, these anomalies have detrimental effects on mechanical properties. In the present study, the effect of laser shock peening (LSP) treatment with different laser pulse overlaps and energies was investigated comprehensively on microstructure, surface texture, porosity, hardness, residual stresses as well as corrosion resistance of laser powder bed fused (L-PBF) AlSi10Mg samples. LSP provides strain deformation on the surface, and the deformation enhances by laser beam energy. LSP1 (laser energy of 1.5 J and 50% overlap) and LSP3 (laser energy of 4.5 J and 50% overlap) introduce maximum local strain of 7.5 and 10.7, respectively. The surface roughness of as-built state mu m in terms of Rv was effectively diminished to 16.33 after LSP6 (laser energy of 4.5 J and 75% overlap). The results indicated that due to the modified surface texture, improved hardness and induced high compressive residual stresses in the surface layer. (surface hardness improvement and inducing high surface compressive residual stresses were obtained after LSP6 up to 26% and 289 MPa, respectively); the LSP treated samples exhibited higher corrosion resistance with the corrosion rate decreasing down to 50% as compared to the as-built state.en_US
dc.description.sponsorshipNational Center for Additive Manufacturing Excellence (NCAME)en_US
dc.description.sponsorshipThe seed funding provided by the National Center for Additive Manufacturing Excellence (NCAME) is appreciated.en_US
dc.identifier.doi10.3390/coatings13050874
dc.identifier.issn2079-6412
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85160443636en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.3390/coatings13050874
dc.identifier.urihttps://hdl.handle.net/20.500.14619/7339
dc.identifier.volume13en_US
dc.identifier.wosWOS:000996723100001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMdpien_US
dc.relation.ispartofCoatingsen_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.subjectlaser powder bed fusion (L-PBF)en_US
dc.subjectAlSi10Mgen_US
dc.subjectlaser shock peening (LSP)en_US
dc.subjectcorrosionen_US
dc.titleEffects of Laser Shock Peening on Corrosion Resistance of Additive Manufactured AlSi10Mgen_US
dc.typeArticleen_US

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