Patent · US Expired

Manganese oxide coated nickel base construction parts for medium containing gaseous hydrogen isotope

US4602968A · kind A · utility

4Cited by

5References

7Claims

0Family size

Assignee

Nukem, LLC · DE

Inventors

Walter Bergmann · Hanau, DE
Horst Ebinger · Salmünster, DE
Gunther Luthardt · Rodenbach, DE
Volker Portscher · Haibach, DE

Key dates

Filing date	Sep 10, 1985
Grant date	Jul 29, 1986
Priority date	—
Expiry date	Sep 10, 2005

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22F1/10
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

There are described construction parts for gaseous hydrogen containing media which construction parts are made of a nickel alloy containing 40 to 70% nickel, 15 to 30% chromium, 0 to 20% cobalt, 5 to 10% molybdenum, and 0 to 20% iron and which construction parts have optimum hydrogen permeation prevention properties. For this purpose, the alloys contain 0.5 to 0.8% manganese and the parts are provided with a 1 to 10 .mu.m thick oxide coating by treating at a temperature of 850.degree. to 1000.degree. C. in an oxidizing atmosphere.

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