Chemical vapor deposited TiCN/TiC multilayer coatings: On the interplay between coating architecture and mechanical properties
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
Autoren
Organisationseinheiten
Externe Organisationseinheiten
- CERATIZIT Austria GmbH
- Christian Doppler Labor für Moderne beschichtete Schneidewerkzeuge, Leoben
Abstract
Modifying the architecture from a monolithic to a multilayered structure allows adjusting the mechanical properties and cutting performance of industrially relevant hard coatings. The present work focuses on the microstructural, micro-mechanical and cutting performance evaluation of a multilayered TiC0.67N0.33/TiC coating grown by chemical vapor deposition. Energy dispersive X-ray spectroscopy and atom probe tomography confirmed the presence of individual TiC and TiC0.67N0.33 layers of ∼120 nm thickness with well-defined interfaces. The overall C/(C + N) ratio of the coating amounts to 0.82. Individual peaks for the TiC0.67N0.33 and the TiC layer can be observed in the X-ray diffractogram of the TiCN/TiC coating. Scanning electron microscopy showed that the grains grow through the interfaces between the TiCN and TiC layers. Finally, the micro-mechanical properties and cutting performance of the TiCN/TiC multilayer were compared with a monolithic TiCN coating. The fact that the TiCN/TiC coating outperformed the monolithic reference TiCN in regard of hardness and cutting performance emphasizes the high potential of multilayered coatings for use in demanding applications.
Details
Originalsprache | Englisch |
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Aufsatznummer | 106890 |
Seitenumfang | 6 |
Fachzeitschrift | International journal of refractory metals & hard materials |
Jahrgang | 125.2024 |
Ausgabenummer | December |
DOIs | |
Status | Veröffentlicht - 14 Sept. 2024 |