Patent · US Expired

Metallic component of a gas turbine installation having protective coatings

US5499905A · kind A · utility

23Cited by

15References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Friedhelm Schmitz · Wittlich, DE
Norbert Czech · Dorsten, DE
Bruno Deblon · Neheim, DE

Key dates

Filing date	Mar 20, 1995
Grant date	Mar 19, 1996
Priority date	—
Expiry date	Mar 20, 2015

Classification

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

Abstract

A metallic component of a gas-turbine installation is formed of a nickel-based base material and at least two coating layers superimposed on the base material for improving corrosion-resistance thereof. The coating layers include a first layer having a composition and/or thickness for resisting corrosive attack of the nickel-based base material at temperatures of 600.degree. C. to 800.degree. C. (HTCII), and a second coating layer having a composition and/or thickness for resisting corrosive attack of the base material at temperatures of 800.degree. C. to 900.degree. C. (HTCI).

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