Considerations about the welding repair effects on the structural integrity of an airframe critical to the flight-safety

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:28:25Z
dc.date.available2014-05-20T13:28:25Z
dc.date.created2014-05-20T13:28:25Z
dc.date.issued2010-01-01
dc.identifierFatigue 2010. Amsterdam: Elsevier B.V., v. 2, n. 1, p. 1895-1903, 2010.
dc.identifier1877-7058
dc.identifierhttp://hdl.handle.net/11449/9457
dc.identifier10.1016/j.proeng.2010.03.204
dc.identifierWOS:000278762900202
dc.identifierWOS000278762900202.pdf
dc.identifier3511534795805776
dc.description.abstractStructures critical to the flight-safety are commonly submitted to several maintenance repairs at the welded joints in order to prolong the in-service life of aircrafts. The aim of this study is to analyze the effects of Tungsten Inert Gas (TIG) welding repair on the structural integrity of the AISI 4130 aeronautical steel by means of experimental fatigue crack growth tests in base-material, heat-affected zone (HAZ) and weld metal. The tests were performed on hot-rolled steel plate specimens, 0.89 mm thick, with load ratio R = 0.1, constant amplitude, at 10 Hz frequency and room temperature. Increase of the fracture resistance was observed in the weld metal but decreasing in the HAZ after repair. The results were associated to microhardness and microstructural changes with the welding sequence. (C) 2010 Published by Elsevier Ltd.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationFatigue 2010
dc.relation0,282
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectAISI 4130 aeronautical steel
dc.subjectfatigue crack growth
dc.subjectTIG welding
dc.subjectwelded joints
dc.subjectHAZ
dc.subjectaircraft motor-cradle
dc.titleConsiderations about the welding repair effects on the structural integrity of an airframe critical to the flight-safety
dc.typeArtículos de revistas


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