Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/320205
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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.identifier.isbn1543-1940pt
dc.typeArtigo de Periódicopt_BR
dc.titleAssessment Of Ductile-to-brittle Transition Behavior Of Localized Microstructural Regions In A Friction-stir Welded X80 Pipeline Steel With Miniaturized Charpy V-notch Testingpt_BR
dc.contributor.authorAvilapt_BR
dc.contributor.authorJA; Luconpt_BR
dc.contributor.authorE; Sowardspt_BR
dc.contributor.authorJ; Meipt_BR
dc.contributor.authorPR; Ramirezpt_BR
dc.contributor.authorAJpt_BR
unicamp.author.emailramirezlondono.1@osu.edupt_BR
dc.subjectMechanical-propertiespt_BR
dc.subjectFracture-toughnesspt_BR
dc.subjectLow-carbonpt_BR
dc.subjectZonept_BR
dc.description.abstractFriction-stir welding (FSW) is an alternative welding process for pipelines. This technology offers sound welds, good repeatability, and excellent mechanical properties. However, it is of paramount importance to determine the toughness of the welds at low temperatures in order to establish the limits of this technology. Ductile-to-brittle transition curves were generated in the present study by using a small-scale instrumented Charpy machine and miniaturized V-notch specimens (Kleinstprobe, KLST); notches were located in base metal, heat-affected, stirred, and hard zones within a FSW joint of API-5L X80 Pipeline Steel. Specimens were tested at temperatures between 77 K (-196 A degrees C) and 298 K (25 A degrees C). Based on the results obtained, the transition temperatures for the base material and heat-affected zone were below 173 K (-100 A degrees C); conversely, for the stirred and hard zones, it was located around 213 K (-60 A degrees C). Fracture surfaces were characterized and showed a ductile fracture mechanism at high impact energies and a mixture of ductile and brittle mechanisms at low impact energies. (C) The Minerals, Metals & Materials Society and ASM International 2016 [GRAPHICS]en
dc.relation.ispartofMetallurgical and Materials Transactions Apt_BR
dc.publisher.cityNEW YORKpt_BR
dc.publisherSPRINGERpt_BR
dc.date.issued2016pt_BR
dc.identifier.citationMetallurgical And Materials Transactions A. SPRINGER, n. 47, n. 6, p. 2855 - 2865.pt_BR
dc.language.isoEnglishpt_BR
dc.description.volume47pt_BR
dc.description.firstpage2855pt_BR
dc.description.lastpage2865pt_BR
dc.rightsfechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn1073-5623pt_BR
dc.identifier.wosidWOS:000375330700031pt_BR
dc.identifier.doi10.1007/s11661-016-3473-zpt_BR
dc.identifier.urlhttp://link.springer.com/article/10.1007/s11661-016-3473-zpt_BR
dc.description.sponsorshipColciencias [512]pt_BR
dc.description.sponsorshipPetrobraspt_BR
dc.description.sponsorshipNISTpt_BR
dc.description.sponsorshipLNNano/CNPEMpt_BR
dc.date.available2016-12-06T18:31:03Z-
dc.date.accessioned2016-12-06T18:31:03Z-
dc.description.provenanceMade available in DSpace on 2016-12-06T18:31:03Z (GMT). No. of bitstreams: 1 000375330700031.pdf: 5813084 bytes, checksum: 58d592309529a22efb3e5a0e390430b4 (MD5) Previous issue date: 2016en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/320205-
Appears in Collections:Unicamp - Artigos e Outros Documentos

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