2005
DOI: 10.1179/cmq.2005.44.4.495
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Effect of Ductile Thermal Spray Coatings on Fatigue Performance of 7075-T651 Aluminum Alloy

Abstract: -The fatigue behaviour of 7075-T651 Al alloy with ductile aluminum thermal sprayed coatings deposited by four different commercial arc spray devices (guns) has been characterized. Coated specimens as well as polished and shot peened specimens were evaluated under fully reversed uniaxial loading at a constant amplitude of ±225 MPa. While the shot peening pretreatment was observed to increase the fatigue resistance of polished specimens, application of the coatings subsequently reduced fatigue life to below that… Show more

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Cited by 3 publications
(1 citation statement)
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“…Changes in the residual stress state of the shot-peened surface were identified as the most likely source of these reductions. With the absence of microgaps at the coating-substrate interface, even after the fatigue tests and with the lowest coating roughness the equipment provided the best fatigue behavior for the Al-coated 7075-T651 Al alloy in this study [54].…”
Section: E7 Conventional and Electrochemical Corrosion Testing Of Comentioning
confidence: 92%
“…Changes in the residual stress state of the shot-peened surface were identified as the most likely source of these reductions. With the absence of microgaps at the coating-substrate interface, even after the fatigue tests and with the lowest coating roughness the equipment provided the best fatigue behavior for the Al-coated 7075-T651 Al alloy in this study [54].…”
Section: E7 Conventional and Electrochemical Corrosion Testing Of Comentioning
confidence: 92%