Comprehensive analysis of mechanical properties, wear, and corrosion behavior of AA7075-T6 alloy subjected to cryogenic treatment for aviation and defense applications

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dc.authorscopusid57194197303en_US
dc.authorscopusid57194491048en_US
dc.authorscopusid55851104900en_US
dc.authorscopusid55330187900en_US
dc.authorscopusid58117264700en_US
dc.authorscopusid35617514400en_US
dc.contributor.authorAltas, Emre
dc.contributor.authorBati, Serkan
dc.contributor.authorRajendrachari, Shashanka
dc.contributor.authorErkan, Omer
dc.contributor.authorDag, Ilker Emin
dc.contributor.authorAvar, Baris
dc.date.accessioned2024-08-23T16:04:32Z
dc.date.available2024-08-23T16:04:32Z
dc.date.issued2024en_US
dc.departmentDüzce Üniversitesien_US
dc.description.abstractIt is important that the parts to be used in the aviation and defense industry have high wear, fatigue and corrosion resistance. AA7075-T6 alloys are increasingly used in every field due to their advantageous physical and mechanical properties. However, some of the materials of this alloy types exhibit excellent fatigue strength and ductility, but their surface hardness and surface roughness after processing may be poor. For this reason, the wear resistance of AA7075-T6 aluminum alloy expected to be improved in order to increase their corrosion resistance properties. In this work, cryogenic treatment was applied to AA7075-T6 alloy and the mechanical characteristics, wear and corrosion behaviors of these samples were examined. As a result of the experiments, it was determined that cryogenic treatment improved the wear behavior of AA7075-T6 alloy. The untreated sample was found to have the highest wear rate, whereas the sample with deep cryogenic treatment (DCT) had the lowest wear rate. The hardness of the DCT process increased by 5.79 %, according to macro hardness measurements, making the AA7075-T6 alloy harder from 80.16 HRB to 84.8. The SEM images revealed that, the shallow cryogenic and deep cryogenic operations had substantial effects on the microstructure by modifying the size and distribution of precipitates in the AA7075-T6 alloy. In addition, tensile and hardness tests were carried out to assess the mechanical characteristics of the samples. Accordingly, the maximum tensile strength and hardness values were obtained in the deep cryogenically treated sample. The tensile strength of the DCT sample was approximately 544.18 MPa, a considerable 11.5 % increase above the untreated sample's 488.07 MPa strength. In potentiodynamic polarization testing, the DCT treated sample was determined to have the maximum corrosion resistance. Among the materials tested, the DCT sample showed the strongest corrosion resistance, with a corrosion potential of -0.689 V and a corrosion rate of 0.021 mm/year. Wear rate analysis revealed that DCT samples experienced the least material loss, demonstrating improved abrasion resistance. Enhanced hardness and the formation of stable oxide tribo-layers contributed to these superior wear characteristic.en_US
dc.identifier.doi10.1016/j.surfcoat.2024.131101
dc.identifier.issn0257-8972
dc.identifier.issn1879-3347
dc.identifier.scopus2-s2.0-85199910460en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.surfcoat.2024.131101
dc.identifier.urihttps://hdl.handle.net/20.500.12684/14259
dc.identifier.volume490en_US
dc.identifier.wosWOS:001286386200001en_US
dc.identifier.wosqualityN/Aen_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/closedAccessen_US
dc.subjectAA7075-T6en_US
dc.subjectDry sliding wearen_US
dc.subjectFriction coefficienten_US
dc.subjectCryogenic treatmenten_US
dc.subjectCorrosionen_US
dc.subjectResidual-Stressesen_US
dc.subjectMicrostructureen_US
dc.subjectResistanceen_US
dc.subjectCoatingsen_US
dc.subjectShallowen_US
dc.titleComprehensive analysis of mechanical properties, wear, and corrosion behavior of AA7075-T6 alloy subjected to cryogenic treatment for aviation and defense applicationsen_US
dc.typeArticleen_US

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