Effect of the Rate of Shock-Wave Loading on the Structural and Phase Transformations of a Cr–Mn Nitrogen-Containing Austenitic Steel
- Authors: Sagaradze V.V.1, Kataeva N.V.1, Pavlenko A.V.2
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Russian Federal Nuclear Center, Zababakhin All-Russia Research Institute of Technical Physics
- Issue: Vol 120, No 3 (2019)
- Pages: 278-283
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/168360
- DOI: https://doi.org/10.1134/S0031918X19030128
- ID: 168360
Cite item
Abstract
Optical metallography, transmission electron microscopy, and EBSD analysis have been used to study the structural and phase transformations at various rates of shock-wave loading in the 0.4N–20Сr–6Ni–11Mn–2Mo–V–Nb (Kh20N6G11М2AFB) austenitic stainless steel. The shock deformation of the investigated steel at a rate of 471 m/s resulted in an increase in the density of dislocations to 8 × 1010 cm–2 and in the formation of ε martensite with a hcp lattice. An increase in the loading rate from 471 to 904 m/s at the initial room temperature led to a heating of austenitic steel samples without the formation of recrystallized grains but caused a reverse ε → γ transformation with inheritance of dislocations.
About the authors
V. V. Sagaradze
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Author for correspondence.
Email: vsagaradze@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
N. V. Kataeva
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: vsagaradze@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
A. V. Pavlenko
Russian Federal Nuclear Center, Zababakhin All-Russia Research Institute of Technical Physics
Email: vsagaradze@imp.uran.ru
Russian Federation, Snezhinsk, Chelyabinsk oblast, 456770
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