The Features of Microstructure and Mechanical Properties of Metastable Austenitic Steel Subjected to Low-Temperature and Subsequent Warm Deformation
- Authors: Litovchenko I.Y.1,2, Akkuzin S.A.2, Polekhina N.A.1,2, Tyumentsev A.N.1,2, Naiden E.P.1
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Affiliations:
- Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
- National Research Tomsk State University
- Issue: Vol 59, No 6 (2016)
- Pages: 782-787
- Section: Article
- URL: https://bakhtiniada.ru/1064-8887/article/view/237298
- DOI: https://doi.org/10.1007/s11182-016-0837-1
- ID: 237298
Cite item
Abstract
The features of microstructure and phase composition of metastable austenitic steel subjected to thermomechanical treatment, including low-temperature processing accompanied by warm rolling deformation, are investigated. Direct (γ → α΄) and reverse strain-induced martensitic transformations are shown to take place, followed by the formation of submicrocrystalline states and 3–4-fold increase in the yield point values. The mechanisms of formation of submicrocrystalline states and the reasons for increased strength are discussed.
About the authors
I. Yu. Litovchenko
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State University
Author for correspondence.
Email: litovchenko@spti.tsu.ru
Russian Federation, Tomsk; Tomsk
S. A. Akkuzin
National Research Tomsk State University
Email: litovchenko@spti.tsu.ru
Russian Federation, Tomsk
N. A. Polekhina
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State University
Email: litovchenko@spti.tsu.ru
Russian Federation, Tomsk; Tomsk
A. N. Tyumentsev
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State University
Email: litovchenko@spti.tsu.ru
Russian Federation, Tomsk; Tomsk
E. P. Naiden
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
Email: litovchenko@spti.tsu.ru
Russian Federation, Tomsk
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