Creep behavior of the inconel 718 superalloy

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dc.contributor.authorSugahara T.
dc.contributor.authorMartinolli K.
dc.contributor.authorReis D.A.P.
dc.contributor.authorMoura Neto C.
dc.contributor.authorCouto A.A.
dc.contributor.authorPiorino Neto F.
dc.contributor.authorBarboza M.J.R.
dc.date.accessioned2024-03-13T01:09:19Z
dc.date.available2024-03-13T01:09:19Z
dc.date.issued2012
dc.description.abstractA superalloy is an alloy developed for elevated temperature service, where relatively severe mechanical stressing is encountered, and where high surface stability is frequently required. High temperature deformation of Ni-base superalloys is very important since the blades and discs of aero engine turbine, because need to work at elevated temperature for an expected long period. The nickel-base alloy Inconel 718 has being investigated because it is one of the most widely used superalloys. The objective of this work was to evaluate the creep behavior of the Inconel 718 focusing on the determination of the experimental parameters related to the primary and secondary creep states. Constant load creep tests were conducted with at 650, 675 and 700°C and the range of stress was from 625 to 814 MPa to according to ASTM E139 standard. The relation between primary creep time and steady-state creep rate, obeyed the equation for both atmospherics conditions at 650, 675 and 700°C. The microstructural characterization employing the technique of scanning electron microscopy has been a valuable tool for understanding the mechanisms of creep. © (2012) Trans Tech Publications.
dc.description.firstpage509
dc.description.lastpage514
dc.description.volume326-328
dc.identifier.doi10.4028/www.scientific.net/DDF.326-328.509
dc.identifier.issn1662-9507
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36878
dc.relation.ispartofDefect and Diffusion Forum
dc.rightsAcesso Restrito
dc.subject.otherlanguageCreep
dc.subject.otherlanguageInconel 718
dc.subject.otherlanguageMicrostructural characterization
dc.titleCreep behavior of the inconel 718 superalloy
dc.typeArtigo de evento
local.scopus.citations24
local.scopus.eid2-s2.0-84860794352
local.scopus.subjectConstant load creep tests
local.scopus.subjectExperimental parameters
local.scopus.subjectHigh temperature deformation
local.scopus.subjectInconel 718 superalloys
local.scopus.subjectInconel-718
local.scopus.subjectMechanical stressing
local.scopus.subjectMicro-structural characterization
local.scopus.subjectSteady state creep rate
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84860794352&origin=inward
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