Varnak O.V., Ilyin S.I., Pyshmintsev I.Yu., Smirnov M.A., Teterkin S.N. Strain aging of pipe steel with the ferrite-bainite structure

Abstract

It is established that steel 06G2FB with the ferrite-bainite structure tends to strain aging to a noticeable extent. Development of strain aging is accompanied by a signif-icant growth of the strength, a marked decrease in uniform relative elongation, speed of deformation hardening and increase in the temperature of the ductile-brittle transition.

Keywords

Low-carbon pipe steel, strain aging, ferrite, bainite, mechanical properties.

Varnak Olga Vasilievna – Lead Engineer, the Russian Research Institute of the Tube & Pipe Industries Open Joint Stock Company, Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Ilyin Sergey Ivanovich – Ph.D. (Physics and Mathematics), Associate Professor, South Ural State University (Na-tional Research University), Chelyabinsk, Russia.

Pyshmintsev Igor Yurievich – D.Sc. (Eng), General Director, the Russian Research Institute of the Tube & Pipe Industries Open Joint Stock Company, Chelyabinsk, Russia.

Smirnov Mikhail Anatolievich – D.Sc. (Eng), Professor, South Ural State University (National Research Univer-sity), Chelyabinsk, Russia.

Teterkin Sergey Nikolaevich – Shift Foreman, OJSC Mechel, Chelyabinsk, Russia.

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