Braak, R. ; May, U. ; Onuseit, L. ; Repphun, G. ; Guenther, M. ; Schmid, Christoph ; Durst, Karsten (2018)
Accelerated thermal degradation of DLC-coatings via growth defects.
In: Surface and Coatings Technology, 349
doi: 10.1016/j.surfcoat.2018.05.063
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Diamond-like carbons (DLC) are frequently used as wear protection coatings for tribologically loaded steel parts in the automotive industry. Diverse interlayer concepts are applied to increase the coatings adhesion which is otherwise poor on blank steel. Our focus lies on the influence of the adhesion layer design on the thermo-chemical stability of a H-containing DLC-coating and the significant role of growth defects.
At the interfaces between individual layers or in more elaborated transition zones, several stability issues might arise under certain conditions: E.g. a thermally driven, intrinsic aging can lower the adhesion strength. With sufficiently low adhesion, stress corrosion cracking along the interface can occur, leading to delamination progression at subcritical loads.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Braak, R. ; May, U. ; Onuseit, L. ; Repphun, G. ; Guenther, M. ; Schmid, Christoph ; Durst, Karsten |
| Art des Eintrags: | Bibliographie |
| Titel: | Accelerated thermal degradation of DLC-coatings via growth defects |
| Sprache: | Englisch |
| Publikationsjahr: | 2018 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Surface and Coatings Technology |
| Jahrgang/Volume einer Zeitschrift: | 349 |
| DOI: | 10.1016/j.surfcoat.2018.05.063 |
| Kurzbeschreibung (Abstract): | Diamond-like carbons (DLC) are frequently used as wear protection coatings for tribologically loaded steel parts in the automotive industry. Diverse interlayer concepts are applied to increase the coatings adhesion which is otherwise poor on blank steel. Our focus lies on the influence of the adhesion layer design on the thermo-chemical stability of a H-containing DLC-coating and the significant role of growth defects. At the interfaces between individual layers or in more elaborated transition zones, several stability issues might arise under certain conditions: E.g. a thermally driven, intrinsic aging can lower the adhesion strength. With sufficiently low adhesion, stress corrosion cracking along the interface can occur, leading to delamination progression at subcritical loads. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde |
| Hinterlegungsdatum: | 18 Jul 2018 14:06 |
| Letzte Änderung: | 18 Jul 2018 14:06 |
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