Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary?

Hardening phenomena in nanocrystalline metals after annealing have been widely reported, and the subject of much recent debate. Solute segregation to grain boundaries and dislocation source hardening have been proposed to cause the strengthening. To shed light on the dominant mechanisms, we present...

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Autores principales: Renk, O., Hohenwarter, A., Eder, K., Kormout, K.S., Cairney, J.M., Pippan, R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pergamon 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4235774/
https://www.ncbi.nlm.nih.gov/pubmed/25598694
http://dx.doi.org/10.1016/j.scriptamat.2014.09.023
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author Renk, O.
Hohenwarter, A.
Eder, K.
Kormout, K.S.
Cairney, J.M.
Pippan, R.
author_facet Renk, O.
Hohenwarter, A.
Eder, K.
Kormout, K.S.
Cairney, J.M.
Pippan, R.
author_sort Renk, O.
collection PubMed
description Hardening phenomena in nanocrystalline metals after annealing have been widely reported, and the subject of much recent debate. Solute segregation to grain boundaries and dislocation source hardening have been proposed to cause the strengthening. To shed light on the dominant mechanisms, we present results from mechanical experiments and atom probe tomography on samples with similar grain size but different amounts of solute segregation and different boundary chemistries.
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spelling pubmed-42357742015-01-15 Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary? Renk, O. Hohenwarter, A. Eder, K. Kormout, K.S. Cairney, J.M. Pippan, R. Scr Mater Article Hardening phenomena in nanocrystalline metals after annealing have been widely reported, and the subject of much recent debate. Solute segregation to grain boundaries and dislocation source hardening have been proposed to cause the strengthening. To shed light on the dominant mechanisms, we present results from mechanical experiments and atom probe tomography on samples with similar grain size but different amounts of solute segregation and different boundary chemistries. Pergamon 2015-01-15 /pmc/articles/PMC4235774/ /pubmed/25598694 http://dx.doi.org/10.1016/j.scriptamat.2014.09.023 Text en © 2014 Acta Materialia Inc. Elsevier Ltd. All rights reserved. https://creativecommons.org/licenses/by/3.0/This work is licensed under a Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/) .
spellingShingle Article
Renk, O.
Hohenwarter, A.
Eder, K.
Kormout, K.S.
Cairney, J.M.
Pippan, R.
Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary?
title Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary?
title_full Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary?
title_fullStr Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary?
title_full_unstemmed Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary?
title_short Increasing the strength of nanocrystalline steels by annealing: Is segregation necessary?
title_sort increasing the strength of nanocrystalline steels by annealing: is segregation necessary?
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4235774/
https://www.ncbi.nlm.nih.gov/pubmed/25598694
http://dx.doi.org/10.1016/j.scriptamat.2014.09.023
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