Patent · US Active

Layer system and blade

US12060810B2 · kind B2 · utility

0Cited by

3References

2Claims

0Family size

Assignee

Siemens Energy Global GmbH & Co. KG · DE

Inventors

Arturo Flores Renteria · Berlin, DE
Andrei Ghicov · Erlangen, DE
Torsten Neddemeyer · Falkensee, DE

Key dates

Filing date	Oct 9, 2018
Grant date	Aug 13, 2024
Priority date	—
Expiry date	May 10, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2300/2112
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A layer system having a metallic substrate, in particular made of a >=9% by weight chromium steel, in particular with roughness of the substrate <=2 μm and optionally an intervening chromium layer directly on the substrate, in particular made of Cr/CrN, an underlayer or middle layer of AlCr, and an outer layer, in particular outermost layer, of AlCrO, where the AlCr and AlCrO layers in particular are PVD coatings wherein a shark skin effect is achieved with a simple geometric arrangement, and can be used particularly for compressor blades.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.