Major damage mechanisms during scratch and wear testing of hard coatings on hard substrates

Stebut, J. von; Rezakhanlou, R.; Anoun, K; Michel, H.; Gantois, M.

doi:10.1016/0040-6090(89)90524-5

Cited by 52 publications

(13 citation statements)

References 15 publications

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“…Various mechanical properties of the coating including hardness [42], ductility [21], and residual stress [43] affect the damage behavior during scratch tests. An additional factor that may affect the scratch response is the coating thickness [44].…”

Section: Scratch Damage and Toughness Propertiesmentioning

confidence: 99%

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Enhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying

Chen

Roa

et al. 2018

Surface and Coatings Technology

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The effect of metal alloying on mechanical properties including hardness and fracture toughness were investigated in three alloys, Ti~0 .33 Al 0.50 (Me)~0 .17 N (Me = Cr, Nb and V), and compared to Ti 0.50 Al 0.50 N, 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

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Section: Scratch Damage and Toughness Propertiesmentioning

confidence: 99%

“…Tribological tests such as scratch or wear tests effectively evaluate the coating's mechanical strength and adhesion properties by analyzing the failure events [19][20][21][22][23]. However, the focus of these studies is limited to the damage events occurring on the surface.…”

Section: Introductionmentioning

confidence: 99%

Enhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying

Chen

Roa

et al. 2018

Surface and Coatings Technology

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“…Nevertheless, some authors criticized its application for coatingsubstrate adhesion assessment (e.g. [16,17]). Although several failure modes are often observed during the scratch test evaluation, only few of them can be attributed to the detachment of the coating and thus directly correlated to adhesion.…”

Section: Adhesion Assessmentmentioning

confidence: 99%

Nanoscratch test — A tool for evaluation of cohesive and adhesive properties of thin films and coatings

Tomáštík

Čtvrtlík

2013

EPJ Web of Conferences

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Abstract. Thin films and coatings play an essential role in the whole range of applications. The example par excellence are optical thin films that broaden the possibilities of design of optical components. Analogically to other applications of thin films their mechanical properties are very important for their successful applicability and reliability. This becomes especially vital when they are employed in rough service conditions. As thin films on substrates inherently create a compact system the strength of the film-substrate interface is of great importance. Several experimental methods have been developed for qualification and quantification of the mechanical stability of the film-substrate system. In this paper, some brief introduction into the nanoscratch test is introduced. It is currently the most widely used method to evaluate and to test cohesive-adhesive properties of thin films and coatings.

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“…In this case, the method consist in the load on the indenter increasing linearly as the indenter moves across the test surface at a constant speed until the failure, which sets the value of the critical normal load. This method is considered efficient in the testing of coated surfaces [7,[12][13][14][15][16], however the application to coatingto-substrate adhesion assessment has been questioned [6,16,17]. The respective kind of the failure depends on the properties of substrate and coating.…”

Section: Introductionmentioning

confidence: 99%

“…Holmberg [18] divides the material response to loading conditions into threes phases implemented to standards [1][2][3][4]. The formation of cracks in the groove of a scratch tester has been described in [7,16,18,19], namely angular cracks, parallel cracks, transverse semi-circular cracks, coating chipping, coating spalling and coating breakthrough [6].…”

Section: Introductionmentioning

confidence: 99%

The Evaluation of the Practical Adhesion Strength of Biocompatible Thin Films by Fuzzy Logic Expert System and International Standards

Socha¹,

Kutílek²,

Vítečková³

2013

Journal of Electrical Engineering

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This work focuses on describing an evaluation method used in nano-and micro-thin films based on fuzzy logic expert systems. The aim is the elimination of comparison complications with mechanical properties of tin films, practical adhesion being one of the most important characteristic of tin films. The basic method for evaluating the practical adhesion strength is scratch test method, while the issue is that research teams use measurement methods based on the non-uniform measurement conditions of adhesion of biocompatible thin films. The authors tested new evaluation method and procedure based on international standards and fuzzy rule based expert system in order to eliminate the problem of comparison of practical adhesion of the films. The article concentrates on testing and using the fuzzy logic expert system designed based on international standards for evaluating adhesion of thin films in nano and micro dimensions. The materials used for tests of the fuzzy expert system were DLC biocompatible layers and substrate a titanium alloy Ti6Al4V.

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Major damage mechanisms during scratch and wear testing of hard coatings on hard substrates

Cited by 52 publications

References 15 publications

Enhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying

Enhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying

Nanoscratch test — A tool for evaluation of cohesive and adhesive properties of thin films and coatings

The Evaluation of the Practical Adhesion Strength of Biocompatible Thin Films by Fuzzy Logic Expert System and International Standards

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