Piston ring for internal combustion engines

The invention relates to a piston ring which is produced from a carrier material, especially steel or a cast material. The piston ring has a wear-resistant coating from a periodic multilayer system, every periodicity consisting of at least two individual metal nitride layers. The multilayer system h...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Fischer, Manfred, Bauer, Christiane, Hoppe, Steffen, Lammers, Ralf
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a piston ring which is produced from a carrier material, especially steel or a cast material. The piston ring has a wear-resistant coating from a periodic multilayer system, every periodicity consisting of at least two individual metal nitride layers. The multilayer system has superlattice structures, the thickness of an individual layer being ≥2 nm to 4.5 μm and adjacent individual layers within the periodicity having different metallic elements.