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2 471 002

(13)

(51)

IPC

C21D7/02(2006-01-01)

C22F1/04(2006-01-01)

(21) (22)

Application

2011148049/02, 2011-11-28

(24)

Start date

2011-11-28

(22)

Actual filing date

2011-11-28

(45)

Published

2012-12-27

(72)

Inventor

Rykov Dmitrij FiloretovichKaljuta Aleksandr Andreevich

(73)

Holder

Rossijskaja Federatsija, Ot Imeni Kotoroj Vystupaet Ministerstvo Promyshlennosti I Torgovli

METHOD OF INCREASING FATIGUE STRENGTH OF STRUCTURAL METALLIC MATERIALS Russian patent published in 2012 - IPC C21D7/02 C22F1/04

Abstract RU 2471002 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, particularly, to development of methods designed to increase fatigue life of structural metals on the basis of material energy structure conversion in both production and operation. Hardening the plates of structural metallic materials comprises aging the plate by applying external mechanical effects thereon to cause cyclic expansion, varying said effects in the range of cyclic dozed compression stresses from σ = (3÷10) kg/mm² to σ_max = (+1÷+4) kg/mm² and shear stresses up to τ = (±3.0÷±5.0) kg/mm².

EFFECT: higher fatigue resistance of structural metallic materials.

2 tbl, 4 dwg

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RU 2 471 002 C1

Authors

Rykov Dmitrij Filoretovich

Kaljuta Aleksandr Andreevich

Dates

2012-12-27—Published

2011-11-28—Filed