Considerations on corrosion and weld repair effects on the fatigue strength of a steel structure critical to the flight-safety

Nascimento, Marcelino P. [UNESP]Voorwald, Herman Jacobus Cornelis [UNESP]2014-05-202014-05-202010-07-01International Journal of Fatigue. Oxford: Elsevier B.V., v. 32, n. 7, p. 1200-1209, 2010.0142-1123http://hdl.handle.net/11449/9409The aim of this study is to analyze the effects of corrosion and successive tungsten inert gas (TIC) welding repairs on the reverse bending fatigue strength of AISI 4130 steel used in components critical to the flight-safety. The tests were performed on hot-rolled steel plate specimens, 1.10 mm and 1.60 mm thick, by means of a SCHENK PWS equipment, with load ratio R = -1, constant amplitude, 30 Hz frequency and room temperature. It was observed that the reverse bending fatigue strength of AISI 4130 steel decreases due to the corrosion and the TIC welding and re-welding processes. (C) 2010 Elsevier Ltd. All rights reserved.1200-1209engAISI 4130 steelFatigue behaviorCorrosionWeld repairsFlight-safetyConsiderations on corrosion and weld repair effects on the fatigue strength of a steel structure critical to the flight-safetyArtigo10.1016/j.ijfatigue.2009.12.017WOS:000277222700022Acesso restrito3511534795805776