Show simple item record

dc.contributor.authorLi, Peifeng
dc.contributor.authorAboulkhair, Nesma
dc.contributor.authorJulan, Wu
dc.contributor.authorKah, Leng
dc.contributor.authorDeyu, Yang
dc.contributor.authorAdam, Clare
dc.contributor.authorXianghui, Hou
dc.contributor.authorFang, Xu
dc.contributor.otherLi, Peifeng
dc.contributor.otherAboulkhair, Xu
dc.contributor.otherJulan, Wu
dc.contributor.otherKah, Leng
dc.contributor.otherAdam, Clare
dc.contributor.otherXianghui, Hou
dc.contributor.otherFang, Xu
dc.description.abstractSelf-lubricating aluminium matrix composites with enhanced tribological properties are sought for weight critical applications. In previous studies, the Al composites incorporating the solid lubricant WS2 have been shown to reduce both the coefficient of friction and wear rate, positioning them as promising candidates in various tribological applications (e.g. automotive industry). However, the impact of interfacial reactions between Al and WS2 during composite production on tribological performance has still not yet been explored. This study highlights the hardening effect of the reaction products. Despite some literature assuming a negative impact of these reactions as they consume WS2 in the composites, this study presents evidence that this cannot be generalised for the overall outcome. Interestingly, a controlled amount is shown to be beneficial for tribological properties. In this work, the tribological influence of the Al-W intermetallic structure forming during spark plasma sintering of the Al-WS2 composites was investigated. The microstructure was tailored by adjusting the manufacturing temperature between 500 and 600 °C. The Al-WS2 fabricated at 580 °C exhibited the lowest coefficient of friction and specific wear rate (reduced by 20% and 97%, respectively, compared to the one fabricated at 500 °C. Furthermore, the worn surface morphology in different stages during friction was evaluated by a novel wear track evolution analysis. This study confirmed that offering a balance between the fraction of solid lubricants and in-situ formed hard intermetallic structure is crucial to the effective formation a protective layer on the worn surface.en_UK
dc.subject.lcshMetallic compositesen_UK
dc.subject.lcshLubrication and lubricantsen_UK
dc.titleTailoring the in-situ formation of intermetallic phases in the self-lubricating Al-WS2 composite for enhanced tribological performance with wear track evolution analysisen_UK
dc.subject.freeSliding wear, Metal-matrix composite, Lubricant additives, Hardness, Electron microscopyen_UK
dc.subject.jacsEngineering::Mechanical engineeringen_UK
dc.subject.lcT Technology::TJ Mechanical engineering and machineryen_UK
uon.divisionUniversity of Nottingham, UK Campus::Faculty of Engineeringen_UK
uon.funder.controlledEngineering & Physical Sciences Research Councilen_UK
uon.datatypeResearch Dataen_UK
uon.collectionmethodExperimental analysisen_UK
uon.institutes-centresUniversity of Nottingham, UK Campusen_UK

Files in this item


This item appears in the following Collection(s)

  • Public Research Data
    A collection of research data, held in this repository, that is publicly available, except where individual embargoes apply

Show simple item record

Except where otherwise noted, this item's license is described as Creative Commons by Attribution