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dc.contributor.authorNascimento, Marcelino P.-
dc.contributor.authorVoorwald, Herman Jacobus Cornelis-
dc.contributor.authorPayao Filho, Joao da C.-
dc.identifier.citationJournal of Materials Processing Technology. Lausanne: Elsevier B.V. Sa, v. 211, n. 6, p. 1126-1135, 2011.-
dc.description.abstractIn this work the effect of Gas Tungsten Arc Welding (GTAW) repairs on the axial fatigue strength of an AISI 4130 steel welded joint used in airframe critical to the flight-safety was investigated. Fatigue tests were performed at room temperature on 0.89 mm thick hot-rolled plates with constant amplitude and load ratio of R = 0.1, at 20 Hz frequency. Monotonic tensile tests, optical metallography and microhardness, residual stress and weld geometric factors measurements were also performed. The fatigue strength decreased with the number of GTAW repairs, and was related to microstructural and microhardness changes, as well as residual stress field and weld profile geometry factors, which gave origin to high stress concentration at the weld toe. (C) 2011 Elsevier B.V. All rights reserved.en
dc.publisherElsevier B.V. Sa-
dc.sourceWeb of Science-
dc.subjectAISI 4130 aeronautical steelen
dc.subjectRepair weldingen
dc.subjectWeld metal and HAZen
dc.subjectWeld geometryen
dc.titleFatigue strength of tungsten inert gas-repaired weld joints in airplane critical structuresen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)-
dc.description.affiliationState Univ São Paulo, Dept Mat & Technol, UNESP FEG DMT, BR-12516410 Guaratingueta, SP, Brazil-
dc.description.affiliationUniv Fed Rio de Janeiro, Dept Met & Mat Engn, PEMM COPPE UFRJ, Ctr Tecnol, BR-21941972 Rio de Janeiro, Brazil-
dc.description.affiliationUnespState Univ São Paulo, Dept Mat & Technol, UNESP FEG DMT, BR-12516410 Guaratingueta, SP, Brazil-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofJournal of Materials Processing Technology-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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