Ultrafine grain formation and coating mechanism arising from a blast coating process: a transmission electron microscopy analysis

DC FieldValueLanguage
dc.contributor.authorDunne, Conor F.-
dc.contributor.authorRoche, Kevin-
dc.contributor.authorJanssen, Arne-
dc.contributor.authorStanton, Kenneth T.-
dc.date.accessioned2019-03-21T09:14:01Z-
dc.date.available2019-03-21T09:14:01Z-
dc.date.copyright2017 Wileyen_US
dc.date.issued2017-10-11-
dc.identifier.citationSurface and Interface Analysisen_US
dc.identifier.urihttp://hdl.handle.net/10197/9638-
dc.description.abstractThis article examines the substrate/coating interface of a coating deposited onto mild steel and stainless steel substrates using an ambient temperature blast coating technique known as CoBlast. The process uses a coincident stream of an abrasive blast medium and coating medium particles to modify the substrate surface. The hypothesis for the high bond strength is that the abrasive medium roughens the surface while simultaneously disrupting the passivating oxide layer of the substrate, thereby exposing the reactive metal that then reacts with the coating medium. The aim of this study is to provide greater insight into the coating/substrate bonding mechanism by analysing the interface between a hydroxyapatite coating on both mild and stainless steel substrates. The coating adhesion was measured via a tensile test, and bond strengths of approximately 45 MPa were measured. The substrate/coating interface was examined using transmission electron microscopy and selected area diffraction. The analysis of the substrate/ coating interface revealed the presence of ultrafine grains in both the coating and substrate at interface associated with deformation at the interface caused by particle impaction during deposition. The chemical reactivity resulting from the creation of these ultrafine grains is proposed to explain the high adhesive strength of CoBlast coatings.en_US
dc.language.isoenen_US
dc.publisherWiley Online Libraryen_US
dc.rightsThis is the peer reviewed version of the following article: Dunne CF, Roche K, Janssen A, et al. Ultrafine grain formation and coating mechanism arising from a blast coating process: A transmission electron microscopy analysis. Surf Interface Anal. 2017;49:1271–1278, which has been published in final form at https://doi.org/10.1002/sia.6324. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en_US
dc.subjectCoatingen_US
dc.subjectHydroxyapatiteen_US
dc.subjectSteelen_US
dc.subjectTransmission electron microscopyen_US
dc.subjectUltrafine grainen_US
dc.titleUltrafine grain formation and coating mechanism arising from a blast coating process: a transmission electron microscopy analysisen_US
dc.typeJournal Articleen_US
dc.internal.authorcontactotherkenneth.stanton@ucd.ieen_US
dc.statusPeer revieweden_US
dc.identifier.volume49en_US
dc.identifier.issue12en_US
dc.identifier.startpage1271en_US
dc.identifier.endpage1278en_US
dc.identifier.doi10.1002/sia.6324-
dc.neeo.contributorDunne|Conor F.|aut|-
dc.neeo.contributorRoche|Kevin|aut|-
dc.neeo.contributorJanssen|Arne|aut|-
dc.neeo.contributorStanton|Kenneth T.|aut|-
dc.description.othersponsorshipProgramme for Research in Third Level Institutions (PRTLI), Irelanden_US
dc.internal.rmsid802694721-
dc.date.updated2017-11-20T12:03:55Z-
item.fulltextWith Fulltext-
item.grantfulltextopen-
Appears in Collections:Mechanical & Materials Engineering Research Collection
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