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2 452 789

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IPC

C22C38/34(2006-01-01)

C22C38/22(2006-01-01)

B82B1/00(2006-01-01)

(21) (22)

Application

2010136696/02, 2010-09-03

(24)

Start date

2010-09-03

(22)

Actual filing date

2010-09-03

(45)

Published

2012-06-10

(72)

Inventor

Reformatskaja Irina IgorevnaAshcheulova Irina IvanovnaPodobaev Aleksandr NikolaevichTorshin Vadim Borisovich

(73)

Holder

Rossijskaja Federatsija, Ot Imeni Kotoroj Vystupaet Ministerstvo Obrazovanija I Nauki Rf Rf)Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Fiziko-Khimicheskij Institut Im. L.Ja. Karpova" Nifkhi Im. L.Ja. Karpova)

RUSTPROOF NANOSTRUCTURED FERRITE STEEL Russian patent published in 2012 - IPC C22C38/34 C22C38/22 B82B1/00

Abstract RU 2452789 C2

FIELD: metallurgy.

SUBSTANCE: steel contains the following components in wt %: carbon - less than 0.03, manganese - 0.20-0.80, chromium - 17.0-19.0, silicon -0.5-3.0, molybdenum - 1.0-2.0, sulfur - not over 0.005, phosphorus - not over 0.001, iron and unavoidable impurities making the rest. Steel may additionally contain titanium in amount satisfying the following equation: 4[C(wt %)]≤[Ti(wt %)]≤1.0%. After bulk nanostructuring, complex secondary phases are formed on dislocation walls of ferrite matrix lattice substructure with nanoparticle sizes not exceeding 10 nm.

EFFECT: higher antirust properties, lower costs.

2 cl, 1 tbl, 1 ex

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RU 2 452 789 C2

Authors

Reformatskaja Irina Igorevna

Ashcheulova Irina Ivanovna

Podobaev Aleksandr Nikolaevich

Torshin Vadim Borisovich

Dates

2012-06-10—Published

2010-09-03—Filed