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dc.creatorBiezma Moraleda, María Victoriaes_ES
dc.creatorBerlanga Labari, Carloses_ES
dc.creatorArgandoña Salinas, Gorkaes_ES
dc.description.abstractDuplex stainless steels are susceptible to the formation of sigma phase at high temperature which could potentially be responsible for catastrophic service failure of components. Thermal treatments were applied to duplex stainless steels in order to promote the precipitation of different fractions of sigma phase into a ferrite-austenite microstructure. Quantitative image analysis was employed to characterize the microstructure and Charpy impact tests were used in order to evaluate the mechanical degradation caused by sigma phase presence. The fracture morphology of the Charpy test specimens were thoroughly observed in SEM, looking for a correlation between the microstructure and the fracture types in UNS S32205 duplex stainless steel. The main conclusion is the strong embrittlement effect of sigma phase since it is possible to observe a transition from transgranular fracture to intergranular fracture as increases the percentage of sigma phase. Thus, the mixed modes of fracture are predominant in the present study with high dependence on sigma phase percentages obtained by different thermal treatments.en
dc.format.extent15 p.
dc.publisherABM, ABC, ABPolen
dc.relation.ispartofMaterials Research, 2013; 16 (5): 965-969en
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)en
dc.subjectDuplex stainless steelen
dc.subjectSigma phaseen
dc.titleRelationship between microstructure and fracture types in a UNS S32205 duplex stainless steelen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Ingeniería Mecánica, Energética y de Materialeses_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Mekanika, Energetika eta Materialen Ingeniaritza Sailaeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.type.versionVersión publicada / Argitaratu den bertsioaes

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Creative Commons Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International (CC BY 4.0)