Patent · US Active

Alloy, protective layer and component

US11092034B2 · kind B2 · utility

0Cited by

13References

8Claims

0Family size

Assignee

Siemens Energy Global GmbH & Co. KG · DE

Inventor

Werner Stamm · Mülheim an der Ruhr, DE

Key dates

Filing date	Jun 22, 2012
Grant date	Aug 17, 2021
Priority date	—
Expiry date	Jun 22, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12944
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Known protective layers having a high Cr content and additionally a silicon form brittle phases which additionally become brittle under the influence of carbon during use. The protective layer hereof has a composition 22% to 24% cobalt (Co), 10.5% to 11.5% aluminum (AI), 0.2% to 0.4% yttrium (Y) and/or at least one equivalent metal from the group comprising scandium and the rare earth elements, 14% to 16% chrome (Cr), optionally 0.3% to 0.9% tantalum, the remainder nickel (Ni).

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