Patent · US Expired

Nickel-based monocrystalline superalloy with improved oxidation resistance and method of production

US5435861A · kind A · utility

15Cited by

4References

9Claims

0Family size

Assignee

OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES · FR

Inventors

Tasadduq Khan · Vélizy-Villacoublay, FR
Pierre Caron · Les Ulis, FR

Key dates

Filing date	Aug 6, 1993
Grant date	Jul 25, 1995
Priority date	—
Expiry date	Aug 6, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C19/057
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A nickel-based monocrystalline superalloy suitable for turbine engine blades is obtained by adding to the alloy at least one element chosen from erbium and silicon, at a concentration by weight of 50 to 500 ppm for Er and of 500 to 1000 ppm for Si and, optionally, hafnium at a concentration by weight of 500 to 1000 ppm.

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