A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe

N. Mavrikakis, C. Detlefs, P. K. Cook, M. Kutsal, A. P. C. Campos, M. Gauvin, P. R. Calvillo, W. Saikaly, R. Hubert, Henning Friis Poulsen, A. Vaugeois, H. Zapolsky, D. Mangelinck, M. Dumont, C. Yildirim*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The properties of engineering materials can be improved by optimising the microstructural developments during annealing processes. Here, we investigate the effect of Sn on the recovery annealing of cold rolled Fe–3%Si alloys. We use a multiscale approach combining micro hardness, electron back scattering diffraction (EBSD), and dark field X-ray microscopy (DFXM): a recent, non-destructive synchrotron-based technique that allows 3D mapping of orientation and lattice strain within individual grains embedded in bulk samples. Micro hardness results show that the Sn solute has a strong effect on the recovery kinetics. These results are compared to a physical kinetic model suggesting that Sn limits the softening. This observation is further discussed by a complementary atomistic modelling that demonstrates solute-dislocation interaction around edge dislocations. In situ DFXM experiments reveal the 3D microstructural evolution upon annealing at the grain level with high angular resolution. The DFXM observations show that Sn slows the recovery kinetics within individual grains, in agreement with the other microscopic investigations. Furthermore, the DFXM results provide a direct observation of strain fields around dislocation loops in an embedded single grain, which is argued to remain static due to solute effect during recovery.
Original languageEnglish
JournalActa Materialia
Volume174
Pages (from-to)92-104
Number of pages13
ISSN1359-6454
DOIs
Publication statusPublished - 2019

Keywords

  • Ferrite
  • Recovery
  • Solute atom
  • Dark field X-ray microscopy (DFXM)
  • Dislocation

Cite this

Mavrikakis, N. ; Detlefs, C. ; Cook, P. K. ; Kutsal, M. ; Campos, A. P. C. ; Gauvin, M. ; Calvillo, P. R. ; Saikaly, W. ; Hubert, R. ; Poulsen, Henning Friis ; Vaugeois, A. ; Zapolsky, H. ; Mangelinck, D. ; Dumont, M. ; Yildirim, C. . / A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe. In: Acta Materialia. 2019 ; Vol. 174. pp. 92-104.
@article{5795a3ac8f534e488d289cfa9a24f2fc,
title = "A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe",
abstract = "The properties of engineering materials can be improved by optimising the microstructural developments during annealing processes. Here, we investigate the effect of Sn on the recovery annealing of cold rolled Fe–3{\%}Si alloys. We use a multiscale approach combining micro hardness, electron back scattering diffraction (EBSD), and dark field X-ray microscopy (DFXM): a recent, non-destructive synchrotron-based technique that allows 3D mapping of orientation and lattice strain within individual grains embedded in bulk samples. Micro hardness results show that the Sn solute has a strong effect on the recovery kinetics. These results are compared to a physical kinetic model suggesting that Sn limits the softening. This observation is further discussed by a complementary atomistic modelling that demonstrates solute-dislocation interaction around edge dislocations. In situ DFXM experiments reveal the 3D microstructural evolution upon annealing at the grain level with high angular resolution. The DFXM observations show that Sn slows the recovery kinetics within individual grains, in agreement with the other microscopic investigations. Furthermore, the DFXM results provide a direct observation of strain fields around dislocation loops in an embedded single grain, which is argued to remain static due to solute effect during recovery.",
keywords = "Ferrite, Recovery, Solute atom, Dark field X-ray microscopy (DFXM), Dislocation",
author = "N. Mavrikakis and C. Detlefs and Cook, {P. K.} and M. Kutsal and Campos, {A. P. C.} and M. Gauvin and Calvillo, {P. R.} and W. Saikaly and R. Hubert and Poulsen, {Henning Friis} and A. Vaugeois and H. Zapolsky and D. Mangelinck and M. Dumont and C. Yildirim",
year = "2019",
doi = "10.1016/j.actamat.2019.05.021",
language = "English",
volume = "174",
pages = "92--104",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Pergamon Press",

}

Mavrikakis, N, Detlefs, C, Cook, PK, Kutsal, M, Campos, APC, Gauvin, M, Calvillo, PR, Saikaly, W, Hubert, R, Poulsen, HF, Vaugeois, A, Zapolsky, H, Mangelinck, D, Dumont, M & Yildirim, C 2019, 'A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe', Acta Materialia, vol. 174, pp. 92-104. https://doi.org/10.1016/j.actamat.2019.05.021

A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe. / Mavrikakis, N.; Detlefs, C.; Cook, P. K.; Kutsal, M.; Campos, A. P. C.; Gauvin, M.; Calvillo, P. R.; Saikaly, W.; Hubert, R.; Poulsen, Henning Friis; Vaugeois, A.; Zapolsky, H.; Mangelinck, D.; Dumont, M.; Yildirim, C. .

In: Acta Materialia, Vol. 174, 2019, p. 92-104.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe

AU - Mavrikakis, N.

AU - Detlefs, C.

AU - Cook, P. K.

AU - Kutsal, M.

AU - Campos, A. P. C.

AU - Gauvin, M.

AU - Calvillo, P. R.

AU - Saikaly, W.

AU - Hubert, R.

AU - Poulsen, Henning Friis

AU - Vaugeois, A.

AU - Zapolsky, H.

AU - Mangelinck, D.

AU - Dumont, M.

AU - Yildirim, C.

PY - 2019

Y1 - 2019

N2 - The properties of engineering materials can be improved by optimising the microstructural developments during annealing processes. Here, we investigate the effect of Sn on the recovery annealing of cold rolled Fe–3%Si alloys. We use a multiscale approach combining micro hardness, electron back scattering diffraction (EBSD), and dark field X-ray microscopy (DFXM): a recent, non-destructive synchrotron-based technique that allows 3D mapping of orientation and lattice strain within individual grains embedded in bulk samples. Micro hardness results show that the Sn solute has a strong effect on the recovery kinetics. These results are compared to a physical kinetic model suggesting that Sn limits the softening. This observation is further discussed by a complementary atomistic modelling that demonstrates solute-dislocation interaction around edge dislocations. In situ DFXM experiments reveal the 3D microstructural evolution upon annealing at the grain level with high angular resolution. The DFXM observations show that Sn slows the recovery kinetics within individual grains, in agreement with the other microscopic investigations. Furthermore, the DFXM results provide a direct observation of strain fields around dislocation loops in an embedded single grain, which is argued to remain static due to solute effect during recovery.

AB - The properties of engineering materials can be improved by optimising the microstructural developments during annealing processes. Here, we investigate the effect of Sn on the recovery annealing of cold rolled Fe–3%Si alloys. We use a multiscale approach combining micro hardness, electron back scattering diffraction (EBSD), and dark field X-ray microscopy (DFXM): a recent, non-destructive synchrotron-based technique that allows 3D mapping of orientation and lattice strain within individual grains embedded in bulk samples. Micro hardness results show that the Sn solute has a strong effect on the recovery kinetics. These results are compared to a physical kinetic model suggesting that Sn limits the softening. This observation is further discussed by a complementary atomistic modelling that demonstrates solute-dislocation interaction around edge dislocations. In situ DFXM experiments reveal the 3D microstructural evolution upon annealing at the grain level with high angular resolution. The DFXM observations show that Sn slows the recovery kinetics within individual grains, in agreement with the other microscopic investigations. Furthermore, the DFXM results provide a direct observation of strain fields around dislocation loops in an embedded single grain, which is argued to remain static due to solute effect during recovery.

KW - Ferrite

KW - Recovery

KW - Solute atom

KW - Dark field X-ray microscopy (DFXM)

KW - Dislocation

U2 - 10.1016/j.actamat.2019.05.021

DO - 10.1016/j.actamat.2019.05.021

M3 - Journal article

VL - 174

SP - 92

EP - 104

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

ER -