Patent · US Active

Martensitic steel having a Z-phase, powder and component

US11492686B2 · kind B2 · utility

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1References

18Claims

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Assignee

Siemens Energy Global GmbH & Co. KG · DE

Inventors

Torsten Neddemeyer · Falkensee, DE
Torsten-Ulf Kern · Wesel, DE
Karsten Kolk · Neheim, DE
Axel Bublitz · Berlin, DE

Key dates

Filing date	Aug 16, 2018
Grant date	Nov 8, 2022
Priority date	—
Expiry date	Feb 24, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2211/008
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An alloy which includes at least the following (in % by weight): carbon (C): 0.15%-0.25%; silicon (Si): 0.0%-0.08%; manganese (Mn): 0.03%-0.20%; chromium (Cr): 9.5%-10.5%; molybdenum (Mo): 0.4%-1.0%; tungsten (W): 1.6%-2.4%; cobalt (Co): 2.5%-3.5%; nickel (Ni): 0.0%-0.40%; boron (B): 0.003%-0.02%; nitrogen (N): 0.0%-0.40%; titanium (Ti): 0.02%-0.10%; vanadium (V): 0.10%-0.30%; niobium (Nb): 0.02%-0.08%; copper (Cu): 1.20%-2.10%; and aluminum (Al): 0.003%-0.06%, in particular 0.005%-0.04%; the remainder being iron (Fe).

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