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US 9,315,883 B2Granted
High strength and low density particle-reinforced steel with improved E-modulus and method for producing said steel
AssigneeTata Steel Nederland Technology B.V.
InventorsCheng Liu, Christian Theodorus Wilhelmus Lahaye
Life of this patent
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Abstract
A particle-reinforced high strength and low density steel with improved E-modulus and method for producing the steel.
Claims24
A particle-reinforced steel strip or sheet comprising, in weight percent,
- from 0.001 to 0.4% C
- from 3 to 9% Al
- from 1.5 to 7% Ti
- from 0.6 to 3.5% B
- up to 5.0% Mn
- up to 1% Cr
- up to 1% Ni
- up to 1% Mo
- up to 1% Cu
- up to 0.5% Si
- up to 0.040% N
- up to 0.2% Nb
- up to 0.2% V
- up to 0.01% S
- up to 0.1% P
- remainder iron and inevitable impurities;
- wherein the structure of the steel comprises at least 3 wt % of Σ(TiB2+Fe2B+TiC)-particles, and wherein −0.5≦(Ti-2.22*B)≦1.6.
14 more elements
Dependencies are inferred from the claim text.