Creep and mechanical behavior study of Inconel 718 Superalloy

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dc.contributor.authorSugahara T.
dc.contributor.authorCouto A.A.
dc.contributor.authorBarboza M.J.R.
dc.contributor.authorNeto F.P.
dc.contributor.authorTakahashi R.J.
dc.contributor.authorReis D.A.P.
dc.date.accessioned2024-03-12T19:17:52Z
dc.date.available2024-03-12T19:17:52Z
dc.date.issued2022
dc.description.abstract© 2022 Universidade Federal de Sao Carlos. All rights reserved.Over the years, the demand for high engine efficiency has resulted in the development of new generation superalloys with improved elevated temperature properties, especially creep resistance. This study aimed to evaluate creep and mechanical behavior of Inconel 718 superalloy. Creep tests were performed at temperature range of 650 to 700 °C and stress range of 625 to 814 MPa. Hot tensile and oxidation tests were performed and the characterization techniques used in this study were scanning electron microscopy (SEM) for microstructural and fracture surface analysis, transmission electron microscopy (TEM) for precipitates analysis; grazing X-ray diffraction for analysis of oxide formation and Vickers microhardness. The analyze of stress exponent value (n = 36.48) and activation energy (Qc = 512.97 kJ/mol), suggested that creep mechanism at 650 °C was the climb dislocation mechanism. The Inconel 718 presented ductile fracture at 650 and 700 °C and intergranular fracture to 675 °C.
dc.description.volume25
dc.identifier.doi10.1590/1980-5373-MR-2021-0280
dc.identifier.issn1980-5373
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34521
dc.relation.ispartofMaterials Research
dc.rightsAcesso Aberto
dc.subject.otherlanguageCreep
dc.subject.otherlanguageInconel 718
dc.subject.otherlanguageMaterials characterization
dc.subject.otherlanguageMechanical behavior
dc.titleCreep and mechanical behavior study of Inconel 718 Superalloy
dc.typeArtigo
local.scopus.citations3
local.scopus.eid2-s2.0-85120829311
local.scopus.subjectBehavior studies
local.scopus.subjectCreep behaviors
local.scopus.subjectElevated temperature
local.scopus.subjectEngine efficiency
local.scopus.subjectInconel 718 superalloys
local.scopus.subjectInconel-718
local.scopus.subjectMaterials characterization
local.scopus.subjectMechanical behavior
local.scopus.subjectTemperature properties
local.scopus.subjectTemperature range
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85120829311&origin=inward
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