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Local electron structure and magnetization in beta-Fe86Mn13C / L. I. Kveglis [et al.] // Superlattices Microstruct. - 2009. - Vol. 46, Is. 1-2. - P. 114-120, DOI 10.1016/j.spmi.2008.11.023. - Cited References: 12 . - ISSN 0749-6036

РУБ Physics, Condensed Matter
Рубрики:
PHASE
Кл.слова (ненормированные):
Frank-Kasper structure -- Local electron structure -- Spin-polarized electronic conditions -- Frank-Kasper structure -- Local electron structure -- Spin-polarized electronic conditions -- Austenite grain -- Austenitic -- C-steel -- Close packed structures -- Dynamic loadings -- Electron structures -- Frank-Kasper structure -- Induction method -- Intergranular -- Local electron structure -- Local electronic structures -- Local magnetization -- Self-consistent field -- Spin-polarized electronic conditions -- Transition regions -- Austenite -- Diffraction -- Electronic structure -- Electrons -- Magnets -- Manganese -- Manganese compounds -- Optical microscopy -- Phase transitions -- Spin dynamics -- Steel -- Textures -- Magnetization -- Frank-Kasper structure -- Local electron structure -- Spin-polarized electronic conditions -- Austenite grain -- Austenitic -- C-steel -- Close packed structures -- Dynamic loadings -- Electron structures -- Frank-Kasper structure -- Induction method -- Intergranular -- Local electron structure -- Local electronic structures -- Local magnetization -- Self-consistent field -- Spin-polarized electronic conditions -- Transition regions -- Austenite -- Diffraction -- Electronic structure -- Electrons -- Magnets -- Manganese -- Manganese compounds -- Optical microscopy -- Phase transitions -- Spin dynamics -- Steel -- Textures -- Magnetization
Аннотация: The aim of the work is to elucidate the origin of magnetization presence in austenitic Fe86Mn13C steel after dynamic loading. The observation of microstructures in the region of transition from FCC austenitic Fe86Mn13C steel to FK12 + FK14 type of Frank-Kasper tetrahedral close packed structure is described. We used the methods of optical microscopy, electron microscopy, electron diffraction and X-ray-diffraction to investigate the phase transition region. Changes of local magnetization were estimated by induction method. To explain the magnetization origin of the sample consisting of austenite grains and intergranular layers, which have Frank-Kasper's structure (FK12 + FK14) typical of beta-Fe-Mn, the local electronic structure has been investigated for intergranular layers. The local electron structure of FK12 and FK14 clusters have been simulated by method of self-consistent field to understand the nature of non-zero magnetization of the Fe87Mn13 alloy exposed by shock deformation. It was shown, that numbers of states with upward and downward spins are not equal. Therefore the occurrence of magnetization is possible. (c) 2009 Published by Elsevier Ltd

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Держатели документа:
[Kveglis, L. I.
Abylkalykova, R. B.] E Kazakhstan Tech Univ, Ust Kamenogorsk, Kazakhstan
[Noskov, F. M.] Siberian Fed Univ, Krasnoyarsk, Russia
[Arhipkin, V. G.
Musikhin, V. A.] SB RAS, Inst Phys, Krasnoyarsk, Russia
[Cherepanov, V. N.
Niavro, A. V.] Siberian Phys & Tech Inst, Tomsk, Russia
ИФ СО РАН
East-Kazakstan Technical University, Kazakhstan
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Physics SB RAS, Krasnoyarsk, Russian Federation
Siberian Physics and Technical Institute, Tomsk, Russian Federation
East-Kazakstan Technical University, Kazakhstan
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Physics SB RAS, Krasnoyarsk, Russian Federation
Siberian Physics and Technical Institute, Tomsk, Russian Federation

Доп.точки доступа:
Kveglis, L. I.; Квеглис, Людмила Иосифовна; Abylkalykova, R. B.; Noskov, F. M.; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Musikhin, V. A.; Cherepanov, V. N.; Niavro, A. V.; International Conference on Nano-structures Self-Assembling(2 ; 2008 ; July ; 7-10 ; Rome, Italy)
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    Mechanisms of deformation of austenitic stainless steel at cold rolling / N. Surikova [et al.] // AIP Conf. Proc. - 2019. - Vol. 2167, Is. 1 : Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019. - Ст. 020356, DOI 10.1063/1.5132223. - Cited References: 7. - Work is performed with financial support of a grant of the Russian Federal Property Fund No. 18-08-00221 and partially within PFNI GAN for 2013-2020, direction III.23. . - ISSN 0094-243X. - ISSN 1551-7616. - ISSN 978-0-735
Рубрики:
Deformation
   X-ray diffraction
   Phase transitions
   Materials treatment
Аннотация: The structure, mechanical characteristics and mechanisms of plastic deformation of stainless austenitic steel 12Cr15Mn9NiCu after high-temperature cross and screw and cold longitudinal rolling are examined with the help of mechanical testing, X-ray diffraction and electron transmission microscopy. It is shown that deformation martensitic transformations are the main mechanisms of deformation at temperatures less than 20 °C. The modes of thermomechanical treatment, which allow to obtain a good combination of strength and plastic properties in steel have been found out.

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Держатели документа:
Institute of Strength Physics and Materials Science SB RAS, 2/4, pr. Akademicheskii, Tomsk, 634055, Russia
Institute of Physics FRC KSC SB RAS, 50, Akademgorodok Str., Bld. 38, Krasnoyars., 660036, Russia

Доп.точки доступа:
Surikova, N.; Panin, V.; Narkevich, N.; Gordienko, A.; Volochaev, M. N.; Волочаев, Михаил Николаевич; International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019(1-5 October 2019 ; Tomsk, Russia)
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Surface hardening of high-nitrogen austenitic steel by severe deformation–heat treatment / N. A. Narkevich, M. N. Volochaev, I. A. Shulepov, Yu. F. Gomorova // Phys. Metals Metallogr. - 2022. - Vol. 123, Is. 10. - P. 1024-1030, DOI 10.1134/S0031918X22601007. - Cited References: 28. - This work was performed within the state assignment of the Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences (theme no. FWRW-2021-0009) . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
high-nitrogen steel -- austenite -- ultrasonic forging -- electron beam treatment -- aging -- CrN -- strength -- plasticity
Аннотация: The structure and mechanical properties of austenitic high-nitrogen steel (16.5 Cr, 18.8 Mn, 0.07 C, 0.53 N, 0.52 wt % Si, Fe for balance) have been investigated after severe deformation–heat treatment, which has involved shock surface forging at the ultrasonic frequency (USF) and electron-beam heat treatment (EBT). A subgrain structure hardened by CrN nanoparticles has been shown to form in the surface layer as a result of deformation–heat treatment. No discontinuous decomposition of austenite with the formation of Cr2N nitrides takes place. This structure modification in the surface layer enhances the strength properties of the steel, namely, σ0.2 increases to 712 MPa and σu to 923 MPa at a plasticity of 25%. The yield strength increases by 50% compared to the state after quenching.

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Публикация на русском языке Упрочнение поверхности высокоазотистой аустенитной стали интенсивной деформационно-термической обработкой [Текст] / Н. А. Наркевич, М. Н. Волочаев, И. А. Шулепов, Ю. Ф. Гоморова // Физ. металлов и металловед. - 2022. - Т. 123 № 10. - С. 1092-1098

Держатели документа:
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Narkevich, N. A.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Shulepov, I. A.; Gomorova, Yu. F.
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