The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy

Diffusion characteristics of cobalt atoms were investigated using radioactive isotope method in phase-hardened Fe-18wt.%Mn-2wt.%Si alloy. The observed significant increase of diffusion coefficient of cobalt atoms under the cyclic γ-ε-γ martensitic transformations was due to the action of two indepen...

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Autores principales: Danilchenko, Vitaliy E, Mazanko, Vladimir F, Filatov, Alexander V, Iakovlev, Viktor E
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4416101/
https://www.ncbi.nlm.nih.gov/pubmed/25977653
http://dx.doi.org/10.1186/s11671-015-0884-5
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author Danilchenko, Vitaliy E
Mazanko, Vladimir F
Filatov, Alexander V
Iakovlev, Viktor E
author_facet Danilchenko, Vitaliy E
Mazanko, Vladimir F
Filatov, Alexander V
Iakovlev, Viktor E
author_sort Danilchenko, Vitaliy E
collection PubMed
description Diffusion characteristics of cobalt atoms were investigated using radioactive isotope method in phase-hardened Fe-18wt.%Mn-2wt.%Si alloy. The observed significant increase of diffusion coefficient of cobalt atoms under the cyclic γ-ε-γ martensitic transformations was due to the action of two independent mechanisms - an athermal one and a thermally activated one. The first one arose from the direct γ-ε and the reverse ε-γ transformations with corresponding direct and reverse lattice shears during alternating stresses and simultaneous lattice restructuring. Another mechanism arose under the diffusion annealing of the phase-hardened alloy.
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spelling pubmed-44161012015-05-14 The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy Danilchenko, Vitaliy E Mazanko, Vladimir F Filatov, Alexander V Iakovlev, Viktor E Nanoscale Res Lett Nano Express Diffusion characteristics of cobalt atoms were investigated using radioactive isotope method in phase-hardened Fe-18wt.%Mn-2wt.%Si alloy. The observed significant increase of diffusion coefficient of cobalt atoms under the cyclic γ-ε-γ martensitic transformations was due to the action of two independent mechanisms - an athermal one and a thermally activated one. The first one arose from the direct γ-ε and the reverse ε-γ transformations with corresponding direct and reverse lattice shears during alternating stresses and simultaneous lattice restructuring. Another mechanism arose under the diffusion annealing of the phase-hardened alloy. Springer US 2015-04-14 /pmc/articles/PMC4416101/ /pubmed/25977653 http://dx.doi.org/10.1186/s11671-015-0884-5 Text en © Danilchenko et al.; licensee Springer. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
spellingShingle Nano Express
Danilchenko, Vitaliy E
Mazanko, Vladimir F
Filatov, Alexander V
Iakovlev, Viktor E
The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy
title The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy
title_full The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy
title_fullStr The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy
title_full_unstemmed The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy
title_short The effect of cyclic martensitic transformations on diffusion of cobalt atoms in Fe-18wt.%Mn-2wt.%Si alloy
title_sort effect of cyclic martensitic transformations on diffusion of cobalt atoms in fe-18wt.%mn-2wt.%si alloy
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4416101/
https://www.ncbi.nlm.nih.gov/pubmed/25977653
http://dx.doi.org/10.1186/s11671-015-0884-5
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