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

Oliver Renk; Anton Hohenwarter; Katja Eder; Karoline Kormout; J. M. Cairney; Reinhard Pippan

doi:10.1016/j.scriptamat.2014.09.023

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

Oliver Renk, Anton Hohenwarter, Katja Eder, Karoline Kormout, J. M. Cairney, Reinhard Pippan

Chair of Materials Physics (430)

Research output: Contribution to journal › Article › Research › peer-review

61 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	27-30
Number of pages	4
Journal	Scripta materialia
Volume	95
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2014.09.023
Publication status	Published - 2015

Keywords

Annealing
Atom probe tomography
Hardening
Nanocrystalline 316L
Segregation

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10.1016/j.scriptamat.2014.09.023

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abstract = "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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AU - Cairney, J. M.

AU - Pippan, Reinhard

PY - 2015

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KW - Segregation

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

Abstract

Keywords

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