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dc.contributor.authorCooke, Kavian O.
dc.contributor.authorKhan, T.I.
dc.contributor.authorShar, M.A.
dc.date.accessioned2020-11-25T14:53:24Z
dc.date.accessioned2020-12-07T06:30:21Z
dc.date.available2020-11-25T14:53:24Z
dc.date.available2020-12-07T06:30:21Z
dc.date.issued2020-02-28
dc.identifier.citationCooke KO, Khan TI and Shar, MA (2020) Effect of heat-treatment on the thermal and mechanical stability of Ni/Al2O3 nanocrystalline coatings. Journal of Manufacturing and Materials Processing. 4(1): 17.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18198
dc.descriptionYesen_US
dc.description.abstractHeat-treatment is a frequently used technique for modifying the physical and chemical properties of materials. In this study, the effect of heat-treatment on the mechanical properties, thermal stability and surface morphology of two types of electrodeposited coatings (pure-Ni and Ni/Al2O3) were investigated. The XRD analyses showed that the crystal structure of the as-deposited coating changes from slightly amorphous to crystalline as the heat-treatment temperature increases. The heat-treatment of both the pure-Ni and the Ni/Al2O3 coating caused an increase of the grain size within the coatings. However, the unreinforced Ni coating experienced a faster growth rate than the Ni/Al2O3 coating, which resulted in a larger average grain size. The temperature-driven changes to the microstructure of the coatings caused a reduction in the hardness and wear resistance of the coatings. The presence of nanoparticles within the Ni/Al2O3 coating can successfully extend the operational temperature range of the coating to 473 K by pinning grain boundaries.en_US
dc.language.isoenen_US
dc.rights(c) 2020 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY license (https://creativecommons.org/licenses/by/4.0/)en_US
dc.subjectCo-electrodepositionen_US
dc.subjectGrain growthen_US
dc.subjectHeat treatmenten_US
dc.subjectNanocrystallineen_US
dc.subjectSliding wearen_US
dc.titleEffect of heat-treatment on the thermal and mechanical stability of Ni/Al2O3 nanocrystalline coatingsen_US
dc.status.refereedYesen_US
dc.date.Accepted2020-02-28
dc.typeArticleen_US
dc.type.versionPublished versionen_US
dc.date.updated2020-11-25T14:53:27Z
refterms.dateFOA2020-12-07T06:30:43Z


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