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dc.contributor.author
Prieto, Germán
dc.contributor.author
Perez Ipiña, Juan Elias
dc.contributor.author
Tuckart, Walter Roberto
dc.date.available
2017-08-02T19:21:03Z
dc.date.issued
2014-05
dc.identifier.citation
Prieto, Germán; Perez Ipiña, Juan Elias; Tuckart, Walter Roberto; Cryogenic treatments on AISI 420 stainless steel: Microstructure and mechanical properties.; Elsevier Science; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 605; 5-2014; 236-243
dc.identifier.issn
0921-5093
dc.identifier.uri
http://hdl.handle.net/11336/21761
dc.description.abstract
Cryogenic treatments have been employed over the last three decades in both tool and high-alloy steels to improve wear resistance, mainly through the transformation of retained austenite and the precipitation of fine carbides. The application of these treatments to low-alloy steels and even to non-ferrous materials is becoming the subject of several investigations, due to their potentiality to reduce wear. This study was aimed at analyzing the microstructural changes and the effect of cryogenic treatments on hardness and impact toughness in martensitic AISI 420 stainless steel. X-ray diffraction (XRD) was employed for phase analysis and characterization, while carbide volume fraction, size and composition evaluation was measured by using scanning electron microscopy (SEM-EDX) and Energy Dispersive Spectrometry (EDS). Hardness was assessed with Vickers technique and the impact toughness was measured by means of Charpy׳s V-notch tests. Fracture surfaces were analyzed by scanning electron microscopy to evaluate the fracture micromechanisms. In this study, it has been experimentally demonstrated that cryogenic treatments favors the precipitation of small carbides, which also present a more homogeneous size distribution. It was observed that this microstructural feature is responsible for the improvement in the mechanical properties of the material.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Carbide Precipitation
dc.subject
Hardness
dc.subject
Impact Toughness
dc.subject
Xrd
dc.title
Cryogenic treatments on AISI 420 stainless steel: Microstructure and mechanical properties.
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-08-01T13:57:47Z
dc.journal.volume
605
dc.journal.pagination
236-243
dc.journal.pais
Países Bajos
dc.journal.ciudad
Ámsterdam
dc.description.fil
Fil: Prieto, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur; Argentina
dc.description.fil
Fil: Perez Ipiña, Juan Elias. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería. Grupo de Mecánica de Fractura; Argentina
dc.description.fil
Fil: Tuckart, Walter Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur; Argentina
dc.journal.title
Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0921509314003414
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.msea.2014.03.059
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