Influence of the coating structure of a-C:H:W coatings on their wear-performance: A theoretical approach and its practical confirmation

Gies, A.; Chudoba, T.; Schwarzer, Norbert; Becker, Jürgen

doi:10.1016/j.surfcoat.2013.07.065

Cited by 11 publications

(10 citation statements)

References 17 publications

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“…We have demonstrated this on the wear track example presented in [13] and [14], where an oscillating wear test with a spherical indenter had been performed. The indenter was sliding forth and back along a certain track thereby wearing off material.…”

Section: Methodsmentioning

confidence: 91%

“…Oliver and Pharr [7] have shown that the force removal curve from elasto-plastic deformations with a Berkovich indenter can be described by a power function: (13) Applying now the concept of the effective indenter, as shown in Figure 2, one can easily deduce that such an unloading curve can be connected with an Indenter of the shape. (14) with: (15) The indices i and s are standing for the indenter and sample, respectively.…”

Section: The Extension Of the Oliver And Pharr Methods To Analyze Nanomentioning

confidence: 99%

“…Within a variety of examples the procedure or parts of it have already been applied [7][8][9][10][11][12][13][14]. Here now, we want to deepen the analysis and discussion by the means of these previous examples and try to improve the simulation by taking nonlinear and temperature effects into account.…”

Section: Methodsmentioning

confidence: 99%

“…It was shown in [13] and [14] that the use of an operator-like wear or tribo-law as introduced in the section above brought some improvement regarding the comparison with experimental data. It was also shown and elaborated that the analytical method as outlined here has the big advantage of delivering quasi "in-sight-views" about the deformation fields, strains, stresses, and so on, of the surfaces subjected to such tribology tests.…”

Section: Methodsmentioning

confidence: 99%

“…The reader will find illustrative examples and a much more comprehensive elaboration of the method elsewhere [11][12][13][14]. [28,[33][34][35][36] been given in the flow chart.…”

Section: Introduction Into the Physical Scratch And/or Tribological Tmentioning

confidence: 99%

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Completely Analytical Tools for the Next Generation of Surface and Coating Optimization

Schwarzer¹

2014

Coatings

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Usually, some severe efforts are required to obtain tribological parameters like Archard's wear depth parameter k d . Complex tribological experiments have to be performed and analyzed. The paper features an approach where such parameters are extracted from effective interaction potentials in combination with more physical-oriented measurements, such as Nanoindentation and physical scratch. Thereby, the effective potentials are built up and fed from such tests. By using effective material potentials one can derive critical loading situations leading to failure (decomposition strength) for any contact situation. A subsequent connection of these decomposition or failure states with the corresponding stress or strain distributions allows the development of rather comprehensive tribological parameter models, applicable in wear and fatigue simulations, as demonstrated in this work. From this, a new relatively general wear model has been developed on the basis of the effective indenter concept by using the extended Hertzian approach for a great variety of loading situations. The models do not only allow to analyze certain tribological experiments, such as the well known pin-on disk test or the more recently developed nano-fretting test, but also to forward simulate such tests and even give hints for structured optimization or result in better component life-time prediction. The work will show how the procedure has to be applied in general and a small selection of practical examples will be presented.

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Section: Methodsmentioning

confidence: 91%

Section: The Extension Of the Oliver And Pharr Methods To Analyze Nanomentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The reader will find illustrative examples and a much more comprehensive elaboration of the method elsewhere [11][12][13][14]. [28,[33][34][35][36] been given in the flow chart.…”

Section: Introduction Into the Physical Scratch And/or Tribological Tmentioning

confidence: 99%

See 3 more Smart Citations