Critical Redistribution of Nitrogen in the Austenitic Cr-Mn Steel under Severe Plastic Deformation
Abstract
:1. Introduction
2. Experimental
3. Results
3.1. TEM Analysis of the Results of HPT Deformation of the Steel FeMn22Cr18N0.83
3.2. Mössbauer-Spectroscopy Analysis of Nitrogen Redistribution in Austenite of the Steel FeMn22Cr18N0.83
3.2.1. Change of the Mössbauer Spectrum of Austenite Depending on the Deformation Temperature of the HPT of Quenched and Aged Steel
3.2.2. The Change in the Mössbauer Spectrum of Austenite and the Redistribution of Nitrogen Atoms Depending on the Degree of “Cold” and “Warm” Deformation ε(n) of Quenched and Aged Steel
3.3. Mechanical Properties of Steel at Different Temperatures and Degrees of Deformation by HPT
4. Discussion
4.1. The Relationship of the Kinetics of Nitrogen Redistribution with the Structure and Hardness of Steel at SPD
4.2. The Nature of Dynamic Decomposition Processes in Steel under SPD
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Treatment | D0 | D1 | D2 | ||||||
---|---|---|---|---|---|---|---|---|---|
IS, mm/s | QS/2, mm/s | SD0, % | IS, mm/s | QS/2, mm/s | SD1, % | IS, mm/s | QS/2, mm/s | SD2, % | |
Quenching | –0.11 | 0.07 | 84 | –0.05 | 0.20 | 16 | – | – | – |
HPT at 298 K | –0.10 | 0.07 | 81 | –0.02 | 0.21 | 17 | 0.01 | 0.32 | 2 |
HPT at 573 K | –0.11 | 0.06 | 91 | –0.03 | 0.20 | 7 | – | – | – |
Aging at 1073 K, 2 h | –0.11 | 0.07 | 86 | –0.05 | 0.20 | 14 | – | – | – |
HPT at 298 K | –0.11 | 0.07 | 81 | –0.03 | 0.20 | 17 | 0.36 | 0.31 | 2 |
HPT at 573 K | –0.10 | 0.07 | 92 | –0.01 | 0.21 | 8 | – | – | – |
Aging at 1073 K, 30 h | –0.12 | 0.06 | 90 | –0.05 | 0.19 | 10 | – | – | – |
HPT at 298 K | –0.11 | 0.07 | 85 | –0.03 | 0.20 | 15 | – | – | – |
HPT at 573 K | –0.11 | 0.06 | 91 | –0.05 | 0.19 | 8 | – | – | – |
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Shabashov, V.; Lyashkov, K.; Kozlov, K.; Zavalishin, V.; Zamatovskii, A.; Kataeva, N.; Sagaradze, V.; Ustyugov, Y. Critical Redistribution of Nitrogen in the Austenitic Cr-Mn Steel under Severe Plastic Deformation. Materials 2021, 14, 7116. https://doi.org/10.3390/ma14237116
Shabashov V, Lyashkov K, Kozlov K, Zavalishin V, Zamatovskii A, Kataeva N, Sagaradze V, Ustyugov Y. Critical Redistribution of Nitrogen in the Austenitic Cr-Mn Steel under Severe Plastic Deformation. Materials. 2021; 14(23):7116. https://doi.org/10.3390/ma14237116
Chicago/Turabian StyleShabashov, Valery, Kirill Lyashkov, Kirill Kozlov, Vladimir Zavalishin, Andrey Zamatovskii, Natalya Kataeva, Victor Sagaradze, and Yurii Ustyugov. 2021. "Critical Redistribution of Nitrogen in the Austenitic Cr-Mn Steel under Severe Plastic Deformation" Materials 14, no. 23: 7116. https://doi.org/10.3390/ma14237116