Abstract
The present invention relates to steel alloys having a martensitic or martensitic- ferritic structure and comprising Z-phase (CrXN) particles, where X is one or more of the elements V, Nb, Ta, and where the Z-phase particles have an average size of less than 400 nm. The alloy comprises by wt % the following components: 9 to 15% Cr, 0.01-0.20% N, C in an amount less than 0.1%, one or more of: 0.01- 0.5%V,0.01-1%Nb, 0.01-2%Ta, and a balance being substantially iron and inevitable impurities. The invention further relates to a method of manufacturing such a steel alloy, a component comprising such a steel alloy, and to the use of such a steel alloy for high temperature components.
| Original language | English |
|---|---|
| Patent number | WO2008106978 |
| Filing date | 12/09/2008 |
| Country | International Bureau of the World Intellectual Property Organization (WIPO) |
| Publication status | Published - 2008 |
Bibliographical note
International application published under the World Intellectual Property Organization (WIPO)Cite this
Hald, J., & Danielsen, H. K. (2008). MARTENSITIC CREEP RESISTANT STEEL STRENGTHENED BY Z-PHASE. (Patent No. WO2008106978).