Development of Heat Treatment Modes for Novel Structural Sparingly Alloyed High-Strength Steel for Arctic and Far North Applications

Полецков, П. П.; Никитенко, О. А.; Kuznetsova, A.; Alekseev, Daniil Yu.

doi:10.1007/s11041-021-00666-w

Cited by 4 publications

(2 citation statements)

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“…Manufacture of new steels with simultaneous combination of high strength and ductility as well as cold resistance at the temperature -70 °С and increased corrosion resistance in H 2 S-and CO 2 -containing environments is required for operation of pipes and equipment at gas, gas-condensate and oil deposits in the Far North and Arctic regions [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Perspective high-strength pipe steel with increased corrosion cold resistance

Poletskov,

Koptseva,

Kuznetsova

et al. 2023

cisisr

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The scientists of Nosov Magnitogorsk State Technical University developed the new steel with 0.08C-1.50Mn-1.20Cr-0.06Nb-0.04Ti alloying system. Phase transformations of undercooled austenite were examined via dilatometric analysis using Gleeble 3500 complex. Metallographic analysis of the structure, which is forming during continuous cooling, is carried out. Thermokinetic and structural diagrams of steel were built. The conditions of controlled rolling and accelerated cooling of the developed steel are suggested; they provide increased strength (ı т =520-560 N/mm 2 , ı в =600-673 N/mm 2 ; į 5 =26-23.5 %; HBW 207-229), cold resistance down to -70 °С (KCV -70 =252-245 J/cm 2 ; KCU -60 =330-295 J/cm 2 ), as well as increased corrosion resistance in carbon dioxide and hydrogen sulfide environments (HIC, SSC). Providing of such favourable combination of properties makes it possible to use the new steel for manufacture of pipes of different strength classes in oil and gas industry, for operation in the Far North regions.

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Section: Introductionmentioning

confidence: 99%

Perspective high-strength pipe steel with increased corrosion cold resistance

Poletskov,

Koptseva,

Kuznetsova

et al. 2023

cisisr

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“…In this case majority of the existing innovations provide production of materials with extremely specialized purposes. In this connection, the unique combinations of requirements for production of new steels, which are characterized by simultaneous high strength and ductility as well as wear resistance, atmospheric resistance and cold resistance at the temperature down to minus 70 °С were developed by the group of scientists from Nosov Magnitogorsk State Technical University [3][4][5]. Such properties determine possibility of simultaneous multirole application of these steels in constructions and objects of Russian oil and gas industry as well as in the areas of bridge construction, building, transport and heavy machinebuilding and other industries.…”

Section: Introductionmentioning

confidence: 99%

Influence of heat treatment on forming the complex of properties for high-strength cold-resistance steel

Полецков¹,

Копцева²,

Efimova³

et al. 2023

cisisr

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Creation of materials for application in the extremal operating conditions, including Arctic and Far North regions, is connected with solving of several problems caused by the effect of static, cyclic and dynamic loads, intensive wear, extra low temperatures etc. A group of scientists from Nosov Magnitogorsk State Technical University has developed the unique combinations of requirements for production of new steels, which are characterized by simultaneous high strength and ductility as well as wear resistance, atmospheric resistance and cold resistance at the temperature down to minus 70 °С. Such properties determine possibility of multirole application of these steels in constructions and objects of Russian oil and gas industry as well as in the areas of bridge construction, building, transport and heavy machine-building and other industries. Production of such steels with different alloying systems, i.e. Si-Mn-Мo and Si-Mn-Ni-Mo with microalloying is mastering at Magnitogorsk Iron and Steel Works in cooperation with Nosov Magnitogorsk State Technical University, within the framework of solving the problem of foreign import replacement. In this case the range of requirements for different concrete grades of multi-functional materials is varied within rather wide range: ı в -from 580 to 1500 MPa, ı 0,2 -from 500 to 1100 MPa, į 5 -from 10 to 20 %, KСV -70 -from 25 to 100 J/cm 2 . Influence of heat treatment procedures (quenching with consequent tempering) on forming the complex of mechanical properties and low-temperature impact strength for highstrength low carbon steels with Si-Mn-Мo and Si-Mn-Ni-Mo alloying systems is examined in this research.

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