Patent · US Active

Use of a nickel-chromium-iron-aluminum alloy

US11162160B2 · kind B2 · utility

1Cited by

6References

18Claims

0Family size

Assignee

VDM Metals International GmbH · DE

Inventors

Heike Hattendorf · Werdohl, DE
Christina Schmidt · Siegen, DE

Key dates

Filing date	Mar 14, 2019
Grant date	Nov 2, 2021
Priority date	—
Expiry date	Mar 14, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A nickel-chromium-aluminum alloy as powder is used for additive manufacturing, wherein the powder consists of spherical particles of a size of 5 to 250 pm, and wherein this alloy consists of (in % by weight) 24 to 33% chromium, 1.8 to 4.0% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 0.60% titanium, 0.0 to 0.05% magnesium and/or calcium respectively, 0.005 to 0.12% carbon, 0.001 to 0.050% nitrogen, 0.00001-0.100% oxygen, 0.001 to 0.030% phosphorus, a maximum of 0.010% sulfur, a maximum of 2.0% molybdenum, a maximum of 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein, with a pore size >1 pm, the powder has total inclusions of 0.0-4% of the pore surface area.

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