Nitriding effect on fatigue resistance of grey and nodular cast irons

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dc.contributor.authorNeves Penha R.
dc.contributor.authorMorilla J.C.
dc.contributor.authorVatavuck J.
dc.contributor.authorCanale L.C.F.
dc.date.accessioned2024-03-13T01:08:20Z
dc.date.available2024-03-13T01:08:20Z
dc.date.issued2012
dc.description.abstractThe influence of nitriding on the fatigue resistance of grey and nodular (ductile) cast iron piston rings was studied for six chemical compositions. The selected materials include three grey cast irons: one with a mixed initial microstructure (martensite plus bainite), the second martensitic and another martensitic alloyed with niobium; and three nodular cast irons: one common nodular cast iron, the second alloyed with Nb and another alloyed with Al and V. These materials were gas nitrided for 3 and 6 h. The relationship between the mechanical behaviour and the treatment time (depth of nitrided layer) was established. Samples were tested under a cyclical bending load. The stresses were determined in the cross-section, where the biggest moment was experienced. Results were statistically treated by means of Weibull analysis. Nitriding showed that fatigue resistance of grey cast iron with a martensitic structure is higher than that of a mixed structure. Fatigue resistance of nodular cast irons is reduced due to nitriding. © 2012 IHTSE Partnership Published by Maney on behalf of the Partnership.
dc.description.firstpage33
dc.description.issuenumber1
dc.description.lastpage37
dc.description.volume6
dc.identifier.doi10.1179/1749514811Z.00000000011
dc.identifier.issn1749-5148
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36823
dc.relation.ispartofInternational Heat Treatment and Surface Engineering
dc.rightsAcesso Restrito
dc.subject.otherlanguageFatigue limit
dc.subject.otherlanguageGrey cast iron
dc.subject.otherlanguageNitriding
dc.subject.otherlanguageNodular cast iron
dc.titleNitriding effect on fatigue resistance of grey and nodular cast irons
dc.typeArtigo
local.scopus.citations6
local.scopus.eid2-s2.0-84861863430
local.scopus.subjectChemical compositions
local.scopus.subjectCyclical bending
local.scopus.subjectFatigue Limit
local.scopus.subjectGrey cast iron
local.scopus.subjectMartensitic structures
local.scopus.subjectMechanical behaviour
local.scopus.subjectMixed structure
local.scopus.subjectNitrided
local.scopus.subjectNitrided layer
local.scopus.subjectTreatment time
local.scopus.subjectWeibull analysis
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84861863430&origin=inward
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