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(19)

(11)

2 588 936

(13)

(51)

IPC

C21D8/00(2006-01-01)

C21D1/78(2006-01-01)

(21) (22)

Application

2015107816/02, 2015-03-05

(24)

Start date

2015-03-05

(22)

Actual filing date

2015-03-05

(45)

Published

2016-07-10

(72)

Inventor

Popelyukh Albert IgorevichNikulina Aelita AleksandrovnaPopelyukh Pavel AlbertovichYurkevich Mariya Ruslanovna

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Professionalnogo Obrazovaniya Gosudarstvennyj Tekhnicheskij Universitet"

METHOD FOR THERMOMECHANICAL TREATMENT OF STEEL ARTICLES Russian patent published in 2016 - IPC C21D8/00 C21D1/78

Abstract RU 2588936 C1

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to high-strength articles operating under considerable dynamic and cyclic loads.

EFFECT: for increasing impact strength, fatigue durability and crack resistance of steel items at maintaining their strength due to formation in steel disperse mixed martensite-bainitic structure, reliable high-strength articles method comprises heating billet to austenitizing temperature, plastic deformation, intermediate cooling in martensitic transformation temperature range, additional heating to temperature of intermediate (bainitic) converting 350 °C and final cooling, at that, intermediate cooling after plastic deformation is performed in molten nitrate, heated to temperature of 180-270 °C, and plastic deformation is performed with degree of 20-40 %.

1 cl, 2 dwg

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RU 2 588 936 C1

Authors

Popelyukh Albert Igorevich

Nikulina Aelita Aleksandrovna

Popelyukh Pavel Albertovich

Yurkevich Mariya Ruslanovna

Dates

2016-07-10—Published

2015-03-05—Filed