TiN versus TiSiN coatings in indentation, scratch and wear setting

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dc.contributor.authorAkhter, R.
dc.contributor.authorZhou, Z.
dc.contributor.authorXie, Z.
dc.contributor.authorMunroe, P.
dc.date.issued2021
dc.description.abstractThe indentation response, scratch behaviour and wear performance of binary TiN and ternary TiSiN coatings under a variety of loading conditions were comparatively studied. The coatings were fabricated onto M42 steel substrates via closed field unbalanced magnetron sputtering ion plating. A maximum hardness value of ~40 GPa was obtained for one of the TiSiN coatings as compared to ~28 GPa for TiN. This was attributed to the nanocomposite structure, grain refinement, solid solution hardening and the higher compressive residual stress in the ternary coatings. The damage resistance of both the TiN and TiSiN coatings under indentation loading was governed by the dampening effects of sliding or shearing of the columnar grains along the grain boundaries coupled with the coatings’ respective mechanical characteristics. Improved scratch adhesion properties (i.e., higher LC1, LC2 and CPR values) were also observed for the TiSiN coatings that were underlain by their superior mechanical properties along with the graded structure, promoting the capacity to resist crack formation and delamination. Lower wear rates for the TiSiN coatings during dry sliding were found to be consistent with their higher H/Er, H3 /Er 2 and We values.
dc.description.statementofresponsibilityRumana Akhter, Zhifeng Zhou, Zonghan Xie, Paul Munroe
dc.identifier.citationApplied Surface Science, 2021; 563:150356-1-150356-11
dc.identifier.doi10.1016/j.apsusc.2021.150356
dc.identifier.issn0169-4332
dc.identifier.issn1873-5584
dc.identifier.urihttps://hdl.handle.net/2440/140039
dc.language.isoen
dc.publisherElsevier BV
dc.relation.granthttp://purl.org/au-research/grants/arc/DP200103152
dc.rights© 2021 Elsevier B.V. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.apsusc.2021.150356
dc.subjectTiSiN coating; microstructure; mechanical properties; indentation behaviour; adhesion strength; wear performance
dc.titleTiN versus TiSiN coatings in indentation, scratch and wear setting
dc.typeJournal article
pubs.publication-statusPublished

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