Enhancement in microstructural and mechanical performance of AA7075 aluminum alloy via severe shot peening and ultrasonic nanocrystal surface modification

dc.authoridAmanov, Auezhan/0000-0002-8695-7430
dc.authoridMaleki, Erfan/0000-0002-5995-1869
dc.contributor.authorEfe, Yusuf
dc.contributor.authorKarademir, Ibrahim
dc.contributor.authorHusem, Fazil
dc.contributor.authorMaleki, Erfan
dc.contributor.authorKarimbaev, Ruslan
dc.contributor.authorAmanov, Auezhan
dc.contributor.authorUnal, Okan
dc.date.accessioned2024-09-29T15:55:03Z
dc.date.available2024-09-29T15:55:03Z
dc.date.issued2020
dc.departmentKarabük Üniversitesien_US
dc.description.abstractIn this experimental study, AA7075 aluminum alloy was subjected to pure severe shot peening (SSP), pure ultrasonic nanocrystalline surface modification (UNSM) and the combination of these two treatments. The treated specimens were analyzed with detailed microstructure analysis, micro-hardness, surface roughness, XRD investigations and wear-friction tests. The results demonstrated that UNSM exhibited fine surface finish and provided minimum surface roughness with the Ra value of 0.8 limo Moreover, UNSM played an important role in the reduction of Ra as a secondary treatment. Electron back scatter diffraction (EBSD) analysis, full width at half maximum (FWHM) evaluations and compressive residual stress (CRS) measurements showed that the deformed layer structure was converted into a nanocrystallized and compressively stressed zone via SSP and UNSM. The hardness on the topmost layer was effectively enhanced by UNSM + SSP and SSP + UNSM processes. The wear and friction performance were particularly improved by two-stage operations of UNSM + SSP and SSP + UNSM. The performance was also compatible with the hardness, residual stress and nanocrystallization investigations.en_US
dc.description.sponsorshipScientific Research Projects Department (BAP) of Karabuk University [KBUBAP-18-YL-001]en_US
dc.description.sponsorshipThe authors wish to thank Scientific Research Projects Department (BAP) of Karabuk University for supporting this study with a grant number KBUBAP-18-YL-001.en_US
dc.identifier.doi10.1016/j.apsusc.2020.146922
dc.identifier.issn0169-4332
dc.identifier.issn1873-5584
dc.identifier.scopus2-s2.0-85086443809en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.apsusc.2020.146922
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4421
dc.identifier.volume528en_US
dc.identifier.wosWOS:000576738600001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofApplied Surface Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSSPen_US
dc.subjectUNSMen_US
dc.subjectWearen_US
dc.subjectGrain refinementen_US
dc.subjectNanocrystallizationen_US
dc.titleEnhancement in microstructural and mechanical performance of AA7075 aluminum alloy via severe shot peening and ultrasonic nanocrystal surface modificationen_US
dc.typeArticleen_US

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