Fatigue and corrosion-fatigue behavior of the ?-metastableTi-5Al-5Mo-5V-3Cr alloy processed by laser powder bedfusion

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dc.contributor.authorKaya, Ali Can
dc.contributor.authorAlcântara, Erika Gabriele Alves
dc.contributor.authorMeinke, Reinhard
dc.contributor.authorSelve, Sören
dc.contributor.authorFleck, Claudia
dc.date.accessioned2024-10-02T18:05:50Z
dc.date.available2024-10-02T18:05:50Z
dc.date.issued2024
dc.departmentTAÜ, Mühendislik Fakültesi, Mekatronik Mühendisliği Bölümüen_US
dc.description.abstractWe performed rotating bending tests and axial (tension-compression) loadincrease and constant amplitude high-cycle fatigue tests in air and Hanks' balanced salt solution (HBSS) on the ?-metastable titanium alloy Ti-5Al-5Mo-5V3Cr, processed by laser powder bed fusion (LPBF-M), solution-treated and aged, and shot-peened. Rotating bending loading in air revealed a strong influence of process-induced flaws on fatigue endurance. Especially in the highcycle fatigue range and the transition region, the stochastic distribution of the flaws and flaw sizes led to a high scatter of the number of cycles to failure. The axial load-increase tests yielded a good fatigue life estimation, with a negligible difference between air and HBSS. The cyclic deformation behavior in HBSS was also strongly influenced by the local microstructure and defect distribution, and, thus, by crack formation and propagation. Plastic deformation and microcrack growth interact, and their relative amount resulted in different progressions of the plastic strain amplitude over the number of cycles for different specimens. Changes in the free corrosion potential and the corrosion current were highly sensitive indicators for fatigue-induced damage on the rough surfaces, which was correlated to the microscopic examination, fracture surface features, and the fatigue crack development.
dc.identifier.citationKaya, Ali C., Alcântara, Erika Gabriele A., Meinke, R., Selve, S., Fleck, C. (2024). Fatigue and corrosion-fatigue behavior of the ?-metastableTi-5Al-5Mo-5V-3Cr alloy processed by laser powder bedfusion. Fatigue & Fracture of Engineering Materials & Structures, 47, 3832-3847.
dc.identifier.doi10.1111/ffe.14394
dc.identifier.endpage3847en_US
dc.identifier.issn8756-758X
dc.identifier.issue47en_US
dc.identifier.scopus2-s2.0-85200970663
dc.identifier.startpage3832en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12846/1371
dc.identifier.wosWOS:001287690400001
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.relation.ispartofFatigue & Fracture of Engineering Materials & Structures
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAdditively manufactured Ti-5Al-5Mo-5V-3Cren_US
dc.subjectCorrosion-fatigueen_US
dc.subjectCyclic deformation behavioren_US
dc.subjectFatigue-induced surface damageen_US
dc.subjectFracture surfaceen_US
dc.subjectHigh-cycle fatigueen_US
dc.titleFatigue and corrosion-fatigue behavior of the ?-metastableTi-5Al-5Mo-5V-3Cr alloy processed by laser powder bedfusion
dc.typeArticle

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