Repair Welding Effects on the Bending Fatigue Strength of AISI 4130 Aeronautical Steel used in a Critical to the Flight-Safety Structure

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dc.contributor.authorNascimento, M. P. [UNESP]
dc.contributor.authorVoorwald, Herman Jacobus Cornelis [UNESP]
dc.contributor.authorFilho, J. C. P.
dc.contributor.authorPereira, C. P. M. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:28:18Z
dc.date.available2014-05-20T13:28:18Z
dc.date.issued2010-01-01
dc.description.abstractThe aim of this study was to analyze the effect of successive TIG (tungsten inert gas) welding repairs on the reverse bending fatigue strength of AISI 4130 steel, which is widely used in components critical to the flight-safety. In order to simulate the abrupt maneuvers, wind bursts, motor vibration and helixes efforts, which generate cyclic bending loadings at the welded joints of a specific aircraft component called motor cradle, experimental reverse bending fatigue tests were carried out on specimens made from hot-rolled steel plate, 1.10 mm (0.043 in) thick, by mean of a SCHENK PWS equipment, with load ratio R = -1, under constant amplitude, at 30 Hz frequency and room temperature. It was observed that the bending fatigue strength decreases after the TIG (Tungsten Inert Gas) welding process application on AISI 4130 steel, with subsequent decrease due to re-welding sequence as well. Microstructural analyses and microhardness measurements on the base material, heat-affected zone (HAZ) and weld metal, as well as the effects of the weld bead geometry on the obtained results, have complemented this study.en
dc.description.affiliationState Univ São Paulo, UNESP FEG DMT, Dept Mat & Technol, Guaratingueta City, SP, Brazil
dc.description.affiliationUnespState Univ São Paulo, UNESP FEG DMT, Dept Mat & Technol, Guaratingueta City, SP, Brazil
dc.format.extent1451-1458
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/MSF.636-637.1451
dc.identifier.citationAdvanced Materials Forum V, Pt 1 and 2. Stafa-zurich: Trans Tech Publications Ltd, v. 636-637, p. 1451-1458, 2010.
dc.identifier.doi10.4028/www.scientific.net/MSF.636-637.1451
dc.identifier.issn0255-5476
dc.identifier.lattes3511534795805776
dc.identifier.urihttp://hdl.handle.net/11449/9411
dc.identifier.wosWOS:000280763200218
dc.language.isoeng
dc.publisherTrans Tech Publications Ltd
dc.relation.ispartofAdvanced Materials Forum V, Pt 1 and 2
dc.relation.ispartofsjr0,180
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectFatigueen
dc.subjectAISI 4130 steelen
dc.subjectWelding repairs on aeronautic structuresen
dc.subjectGTAW processen
dc.titleRepair Welding Effects on the Bending Fatigue Strength of AISI 4130 Aeronautical Steel used in a Critical to the Flight-Safety Structureen
dc.typeArtigo
dcterms.rightsHolderTrans Tech Publications Ltd
unesp.author.lattes3511534795805776
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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