Reciprocating sliding wear behavior of high-strength nanocrystalline Al84Ni7Gd6Co3 alloys

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dc.contributor.authorWang, Zhi
dc.contributor.authorGeorgarakis, Konstantinos
dc.contributor.authorZhang, W. W.
dc.contributor.authorPrashanth, Konda Gokuldoss
dc.contributor.authorEckert, Juergen H.
dc.contributor.authorScudino, Sergio
dc.date.accessioned2017-04-26T14:46:27Z
dc.date.available2017-04-26T14:46:27Z
dc.date.issued2017-04-23
dc.description.abstractNanocrystalline Al-Ni-Gd-Co alloys with exceptionally high hardness have been recently developed from amorphous precursors. In the present work, the reciprocating sliding wear in the gross slip regime of these novel nanocrystalline Al-based alloys has been investigated under small amplitude oscillatory sliding motion using a martensitic chrome steel as the counter material. When compared to pure Al or Al-12Si alloy, these nanocrystalline alloys exhibit excellent wear resistance and a lower coefficient of friction when sliding against steel. The enhanced wear resistance of the novel nanocrystaline Al alloys is related to their ultra-high hardness and the hybrid nanostructure that mainly consists of nanometric intermetallic phases embedded in a nanocrystalline fcc-Al matrix. Three body abrasive conditions were created at the initial stages of the wear tests due to the formation of micro- and nano-particulate debris from the worn surface of the Al alloys; the debris was compacted under the subsequent sliding cycles forming layers that are protective to the extensive wear of the Al alloys.en_UK
dc.identifier.citationWang Z, Georgarakis K, Zhang WW, et al., Reciprocating sliding wear behavior of high-strength nanocrystalline Al84Ni7Gd6Co3 alloys. Wear, Volume 382–383, July 2017, pp. 78-84en_UK
dc.identifier.issn0043-1648
dc.identifier.urihttp://dx.doi.org/10.1016/j.wear.2017.04.013
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11827
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectWearen_UK
dc.subjectNanocrystalline alloysen_UK
dc.subjectAl alloysen_UK
dc.subjectReciprocating sliding wearen_UK
dc.subjectFretting wearen_UK
dc.subjectTribological behavioren_UK
dc.titleReciprocating sliding wear behavior of high-strength nanocrystalline Al84Ni7Gd6Co3 alloysen_UK
dc.typeArticleen_UK

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