US 12,392,249 B2
Coating for thermally and abrasively loaded turbine blades
Bernhard Kohlhauser, Vienna (AT); Jürgen Ramm, Maienfeld (CH); Oliver Hunold, Wädenswil (CH); and Edgar Balter, Übersaxen (AT)
Assigned to OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKON, Pfäffikon (CH)
Appl. No. 18/257,419
Filed by Oerlikon Surface Solutions AG, Pfäffikon, Pfäffikon (CH)
PCT Filed Oct. 27, 2021, PCT No. PCT/EP2021/000134
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2022/128144, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 10 2020 007 662.9 (DE), filed on Dec. 15, 2020.
Prior Publication US 2024/0026793 A1, Jan. 25, 2024
Int. Cl. F01D 5/28 (2006.01); C23C 28/00 (2006.01)
CPC F01D 5/288 (2013.01) [C23C 28/3215 (2013.01); C23C 28/34 (2013.01); F05D 2230/313 (2013.01); F05D 2230/90 (2013.01); F05D 2300/175 (2013.01); F05D 2300/611 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for coating a substrate comprising a gas turbine blade, comprising the steps:
in a first step, application of a MCrAlY matrix by means of a PVD method, wherein “M” in MCrAlY stands for Co, Ni, or Co—Ni; and
in a further step, application of a layer by means of a PVD method, wherein the layer is aluminum-chromium oxide,
wherein the steps for applying the MCrAlY matrix and for applying the aluminum-chromium oxide are repeated alternately in order to deposit a multilayer layer comprising alternating MCrAlY and aluminum-chromium oxide layers.