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Zhurnal Tekhnicheskoi Fiziki, 2021, Volume 91, Issue 7, Pages 1139–1147
DOI: https://doi.org/10.21883/JTF.2021.07.50955.344-20
(Mi jtf4975)
 

This article is cited in 1 scientific paper (total in 1 paper)

Physical science of materials

Migration of $\gamma/\alpha$ interphase boundaries – the initial stage of reverse $\alpha\to\gamma$ transformation at slow heating of metastable allow Fe–32 at.% Ni

N. D. Zemtsova

Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg
Abstract: During quenching of Fe–Ni metastable alloys with the invar composition from the austenite region, precipitating Fe$_3$Ni disperse particles are transformed into the $\alpha$-martensite structure upon cooling of the alloy in liquid nitrogen. Under slow heating, the inverse $\alpha\to\gamma$ transformation is initiated by the diffusion mechanism (and not the martensite mechanism as has been assumed until now) via migration of the $\gamma/\alpha$ phase boundaries, which is accompanied with coalescence of Fe$_3$Ni particles at these boundaries. The periodic distribution of lumped particles at the $\gamma$/$\alpha$ interfaces determines the periodic distribution of the mobility of various regions in phase boundaries. This leads to a change in the morphology of $\gamma/\alpha$ interfaces from the linear to serrate form in the course of diffusion-controlled evolution of the $\alpha\to\gamma$ transformation.
Keywords: $\alpha\to\gamma$-transformation, martensitic plates, allows of Fe–Ni system.
Funding agency Grant number
Ministry of Education and Science of the Russian Federation AAAA-A18-118020190116-6
This study was performed in the framework of state order no. AAAA-A18-118020190116-6 for the Institute of Metal Physics, Ural Branch, Russian Academy of Sciences (theme “Structure”).
Received: 14.12.2020
Revised: 15.01.2021
Accepted: 27.01.2021
English version:
Technical Physics, 2021, Volume 66, Issue 9, Pages 1049–1057
DOI: https://doi.org/10.1134/S1063784221070161
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: N. D. Zemtsova, “Migration of $\gamma/\alpha$ interphase boundaries – the initial stage of reverse $\alpha\to\gamma$ transformation at slow heating of metastable allow Fe–32 at.% Ni”, Zhurnal Tekhnicheskoi Fiziki, 91:7 (2021), 1139–1147; Tech. Phys., 66:9 (2021), 1049–1057
Citation in format AMSBIB
\Bibitem{Zem21}
\by N.~D.~Zemtsova
\paper Migration of $\gamma/\alpha$ interphase boundaries -- the initial stage of reverse $\alpha\to\gamma$ transformation at slow heating of metastable allow Fe--32 at.\% Ni
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2021
\vol 91
\issue 7
\pages 1139--1147
\mathnet{http://mi.mathnet.ru/jtf4975}
\crossref{https://doi.org/10.21883/JTF.2021.07.50955.344-20}
\elib{https://elibrary.ru/item.asp?id=46470486}
\transl
\jour Tech. Phys.
\yr 2021
\vol 66
\issue 9
\pages 1049--1057
\crossref{https://doi.org/10.1134/S1063784221070161}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85124354202}
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  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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