EP 4200457 A1 20230628 - COMPONENT WITH INTEGRATED ALUMINUM DIFFUSION LAYER AND ALUMINUM OXIDE LAYER
Title (en)
COMPONENT WITH INTEGRATED ALUMINUM DIFFUSION LAYER AND ALUMINUM OXIDE LAYER
Title (de)
BAUTEIL MIT INTEGRIERTER ALUMINIUMDIFFUSIONSSCHICHT UND ALUMINIUMOXIDSCHICHT
Title (fr)
COMPOSANT DOTÉ D'UNE COUCHE DE DIFFUSION D'ALUMINIUM ET D'UNE COUCHE D'OXYDE D'ALUMINIUM INTÉGRÉES
Publication
Application
Priority
- DE 102021118766 A 20210720
- EP 2022070297 W 20220720
Abstract (en)
[origin: WO2023001869A1] The invention relates to a component with a part (1) which is made of low-alloy steel and/or heat-treatable steel. The part (1) is at least partly coated with an aluminum diffusion layer (10), and an aluminum oxide layer (14) is applied onto the aluminum diffusion layer (10). The layer thickness of the aluminum diffusion layer (10) equals 1 – 200 µm, and the aluminum diffusion layer (10) has an aluminum content of 10 wt.% above the aluminum content of the steel, based on the total weight of the aluminum diffusion layer, up to a maximum concentration, wherein the aluminum content in the aluminum diffusion layer (10) continuously increases from 10 wt.% to the maximum concentration in the direction of the boundary surface (12) between the aluminum diffusion layer (10) and the aluminum oxide layer (14), said maximum concentration equaling 11 – 60 wt.%.
IPC 8 full level
C23C 2/12 (2006.01); C21D 9/00 (2006.01); C23C 2/26 (2006.01); C23C 2/28 (2006.01); C23C 8/02 (2006.01); C23C 8/10 (2006.01); C23C 8/16 (2006.01); C23C 8/18 (2006.01); C23C 10/02 (2006.01); C23C 10/48 (2006.01); C23C 10/50 (2006.01); C23C 10/60 (2006.01); C23C 16/12 (2006.01); C23C 16/56 (2006.01); C23C 28/00 (2006.01); H01M 50/00 (2021.01)
CPC (source: EP US)
C21D 1/18 (2013.01 - US); C21D 1/74 (2013.01 - US); C21D 9/0087 (2013.01 - EP); C21D 9/0093 (2013.01 - EP); C21D 9/02 (2013.01 - EP); C23C 2/12 (2013.01 - EP); C23C 2/26 (2013.01 - EP); C23C 2/28 (2013.01 - EP); C23C 8/02 (2013.01 - EP); C23C 8/10 (2013.01 - EP US); C23C 8/16 (2013.01 - EP); C23C 8/18 (2013.01 - EP); C23C 10/02 (2013.01 - EP); C23C 10/48 (2013.01 - EP); C23C 10/50 (2013.01 - EP); C23C 10/60 (2013.01 - EP US); C23C 16/06 (2013.01 - EP); C23C 28/32 (2013.01 - EP); C23C 28/322 (2013.01 - EP US); C23C 28/325 (2013.01 - EP); C23C 28/345 (2013.01 - EP US); C21D 1/18 (2013.01 - EP); C21D 1/74 (2013.01 - EP); C21D 6/00 (2013.01 - EP); C21D 7/10 (2013.01 - EP); C21D 9/525 (2013.01 - EP); H01M 8/00 (2013.01 - EP); H01M 50/00 (2021.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021118766 A1 20230126; CN 117677727 A 20240308; EP 4200457 A1 20230628; MX 2024000832 A 20240208; US 2024271285 A1 20240815; WO 2023001869 A1 20230126
DOCDB simple family (application)
DE 102021118766 A 20210720; CN 202280050718 A 20220720; EP 2022070297 W 20220720; EP 22758146 A 20220720; MX 2024000832 A 20220720; US 202218290708 A 20220720