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dc.contributor.authorChen, Yu-Hsiang
dc.contributor.authorRoa Rovira, Joan Josep
dc.contributor.authorYu, C. H.
dc.contributor.authorJohansson Joesaar, M.P
dc.contributor.authorAndersson, J. M.
dc.contributor.authorAnglada Gomila, Marcos Juan
dc.contributor.authorOdén, Magnus
dc.contributor.authorRogstrom, Lina
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationChen, Y. H., Roa, J.J., Yu, C., Johansson, M., Andersson, J., Anglada, M., Oden, M., Rogstrom, L. Enhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying. "Surface and coatings technology", 25 Maig 2018, vol. 342, p. 85-93.
dc.description.abstractThe effect of metal alloying on mechanical properties including hardness and fracture toughness were investigated in three alloys, Ti~0.33Al0.50(Me)~0.17N (Me¿=¿Cr, Nb and V), and compared to Ti0.50Al0.50N, in the as-deposited state and after annealing. All studied alloys display similar as-deposited hardness while the hardness evolution during annealing is found to be connected to phase transformations, related to the alloy's thermal stability. The most pronounced hardening was observed in Ti0.50Al0.50N, while all the coatings with additional metal elements sustain their hardness better and they are harder than Ti0.50Al0.50N after annealing at 1100¿°C. Fracture toughness properties were extracted from scratch tests. In all tested conditions, as-deposited and annealed at 900 and 1100¿°C, Ti0.33Al0.50Nb0.17N show the least surface and sub-surface damage when scratched despite the differences in decomposition behavior and h-AlN formation. Theoretically estimated ductility of phases existing in the coatings correlates well with their crack resistance. In summary, Ti0.33Al0.50Nb0.17N is the toughest alloy in both as-deposited and post-annealed states.
dc.format.extent9 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshTitanium compounds
dc.subject.otherThermal stability
dc.subject.otherQuaternary transition metal nitrides
dc.subject.otherScratch test
dc.subject.otherFracture toughness
dc.subject.otherArc evaporation
dc.titleEnhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying
dc.subject.lemacTitani -- Compostos
dc.contributor.groupUniversitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorChen, Y. H.; Roa, J.J.; Yu, C.; Johansson, M.; Andersson, J.; Anglada, M.; Oden, M.; Rogstrom, L.
local.citation.publicationNameSurface and coatings technology

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