Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/114090
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dc.contributor.authorKabir, M.-
dc.contributor.authorMunroe, P.-
dc.contributor.authorZhou, Z.-
dc.contributor.authorXie, Z.-
dc.date.issued2018-
dc.identifier.citationCeramics International, 2018; 44(10):11364-11373-
dc.identifier.issn0272-8842-
dc.identifier.issn1873-3956-
dc.identifier.urihttp://hdl.handle.net/2440/114090-
dc.description.abstractAn in-depth investigation of the structure, properties, scratch adhesion characteristics of graded Cr-CrN-Cr(1-x)AlxN coatings synthesized onto M42 steel substrates using closed – field unbalanced magnetron sputtering (CFUBMS) was carried out. Advanced microscopy (scanning and transmission electron microscopy), focused ion beam (FIB) imaging, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and micro–scratch tests was used to investigate the microstructure, mechanical properties and scratch performance as a function of Al content. FIB and TEM investigations revealed that the coatings exhibited a distinct structure; i.e., an adhesive Cr layer, a CrN transition layer and a graded CrAlN top layer with a face centered cubic (FCC) B1 structure. A columnar morphology was exhibited by the coatings and the dimensions of the columnar grains decreased with increasing Al content. Residual stress measurements, obtained from the XRD – sin2ψ method, revealed increasing compressive stresses with increasing Al content. Furthermore, nanoindentation tests showed an increase in mechanical properties, fracture toughness index (H/E) and plastic deformation resistance (H3/E2) as the Al content increased, accompanied by a decrease in the critical load, LC, during scratch testing implying a decrease in scratch toughness.-
dc.description.statementofresponsibilityMohammad Sharear Kabir, Paul Munroe, Zhifeng Zhou, Zonghan Xie-
dc.language.isoen-
dc.publisherElsevier-
dc.rights© 2018 Elsevier Ltd and Techna Group S.r.l. All rights reserved.-
dc.subjectGraded coating; unbalanced magnetron sputtering; plastic deformation resistance (H3/E2); nanoindentation; adhesion-
dc.titleStudy of the structure, properties, scratch resistance and deformation behaviour of graded Cr-CrN-Cr(1-x)AlxN coatings-
dc.typeJournal article-
dc.identifier.doi10.1016/j.ceramint.2018.03.187-
dc.relation.granthttp://purl.org/au-research/grants/arc/DP150102417-
pubs.publication-statusPublished-
Appears in Collections:Aurora harvest 3
Mechanical Engineering publications

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