An investigation of surface corrosion behavior of Inconel 718 after robotic belt grinding

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dc.contributor.authorWang J
dc.contributor.authorXu J
dc.contributor.authorZhang X
dc.contributor.authorRen X
dc.contributor.authorSong X
dc.contributor.authorChen X
dc.date.accessioned2019-02-03T21:14:58Z
dc.date.available2019-02-03T21:14:58Z
dc.date.issued2018en
dc.date.updated2019-01-28T22:35:16Z
dc.description.abstract© 2018 by the authors. Surface corrosion resistance of nickel-based superalloys after grinding is an important consideration to ensure the service performance. In this work, robotic belt grinding is adopted because it offers controllable material processing by dynamically controlling process parameters and tool-workpiece contact state. Surface corrosion behavior of Inconel 718 after robotic belt grinding was investigated by electrochemical testing in 3.5 wt % NaCl solution at room temperature. Specimens were characterized by morphology, surface roughness and residual stress systematically. The potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) analysis indicate the corrosion resistance of the specimen surface improves remarkably with the decrease of abrasive particle size. It can be attributed to the change of surface roughness and residual stress. The energy dispersive X-ray spectroscopy (EDS) indicates that niobium (Nb) is preferentially attacked in the corrosion process. A plausible electrochemical dissolution behavior for Inconel 718 processed by robotic belt grinding is proposed. This study is of significance for achieving desired corrosion property of work surface by optimizing grinding process parameters.en
dc.identifier.doihttps://doi.org/10.3390/ma11122440
dc.identifier.issn1996-1944
dc.identifier.urihttp://hdl.handle.net/10092/16435
dc.languageEnglish
dc.language.isoen
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en
dc.subjectcorrosion behavioren
dc.subjectnickel-based superalloyen
dc.subjectresidual stressen
dc.subjectrobotic belt grinding techniqueen
dc.subjectroughnessen
dc.subject.anzsrcFields of Research::40 - Engineering::4016 - Materials engineering::401607 - Metals and alloy materialsen
dc.subject.anzsrcField of Research::09 - Engineering::0913 - Mechanical Engineering::091399 - Mechanical Engineering not elsewhere classifieden
dc.titleAn investigation of surface corrosion behavior of Inconel 718 after robotic belt grindingen
dc.typeJournal Articleen
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