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Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns

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Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns. / Perrut, Mikaël; Parisi, Andrea; Akamatsu, Silvère et al.
In: Acta Materialia, Vol. 58, No. 5, 03.2010, p. 1761-1769.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Perrut, M, Parisi, A, Akamatsu, S, Bottin-Rousseau, S, Faivre, G & Plapp, M 2010, 'Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns', Acta Materialia, vol. 58, no. 5, pp. 1761-1769. https://doi.org/10.1016/j.actamat.2009.11.018

APA

Perrut, M., Parisi, A., Akamatsu, S., Bottin-Rousseau, S., Faivre, G., & Plapp, M. (2010). Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns. Acta Materialia, 58(5), 1761-1769. https://doi.org/10.1016/j.actamat.2009.11.018

Vancouver

Perrut M, Parisi A, Akamatsu S, Bottin-Rousseau S, Faivre G, Plapp M. Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns. Acta Materialia. 2010 Mar;58(5):1761-1769. Epub 2009 Dec 9. doi: 10.1016/j.actamat.2009.11.018

Author

Perrut, Mikaël ; Parisi, Andrea ; Akamatsu, Silvère et al. / Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns. In: Acta Materialia. 2010 ; Vol. 58, No. 5. pp. 1761-1769.

Bibtex

@article{37a90c310bff4e659a3ca3b9334e1280,
title = "Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns",
abstract = "In directional solidification, a sample is pulled in an externally imposed temperature gradient. When the pulling direction and the temperature gradient are not perfectly aligned, a transverse temperature gradient is generated in the sample. We investigate the dynamics of lamellar eutectic patterns, both by experimental observations and by numerical simulations, and find that it is dramatically affected by a transverse gradient. Whereas, in its absence, the labyrinth patterns that are formed in the initial stage of solidification persist over the entire duration of the experiments, a transverse temperature gradient induces a drift of the pattern which rapidly generates a regular array of lamellae. The drift speed is found to be consistently larger than expected from the normal growth hypothesis, both in simulations and experiments.",
keywords = "Directional solidification, Eutectic solidification, Phase field modeling, Solidification microstructure",
author = "Mika{\"e}l Perrut and Andrea Parisi and Silv{\`e}re Akamatsu and Sabine Bottin-Rousseau and Gabriel Faivre and Mathis Plapp",
year = "2010",
month = mar,
doi = "10.1016/j.actamat.2009.11.018",
language = "English",
volume = "58",
pages = "1761--1769",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "PERGAMON-ELSEVIER SCIENCE LTD",
number = "5",

}

RIS

TY - JOUR

T1 - Role of transverse temperature gradients in the generation of lamellar eutectic solidification patterns

AU - Perrut, Mikaël

AU - Parisi, Andrea

AU - Akamatsu, Silvère

AU - Bottin-Rousseau, Sabine

AU - Faivre, Gabriel

AU - Plapp, Mathis

PY - 2010/3

Y1 - 2010/3

N2 - In directional solidification, a sample is pulled in an externally imposed temperature gradient. When the pulling direction and the temperature gradient are not perfectly aligned, a transverse temperature gradient is generated in the sample. We investigate the dynamics of lamellar eutectic patterns, both by experimental observations and by numerical simulations, and find that it is dramatically affected by a transverse gradient. Whereas, in its absence, the labyrinth patterns that are formed in the initial stage of solidification persist over the entire duration of the experiments, a transverse temperature gradient induces a drift of the pattern which rapidly generates a regular array of lamellae. The drift speed is found to be consistently larger than expected from the normal growth hypothesis, both in simulations and experiments.

AB - In directional solidification, a sample is pulled in an externally imposed temperature gradient. When the pulling direction and the temperature gradient are not perfectly aligned, a transverse temperature gradient is generated in the sample. We investigate the dynamics of lamellar eutectic patterns, both by experimental observations and by numerical simulations, and find that it is dramatically affected by a transverse gradient. Whereas, in its absence, the labyrinth patterns that are formed in the initial stage of solidification persist over the entire duration of the experiments, a transverse temperature gradient induces a drift of the pattern which rapidly generates a regular array of lamellae. The drift speed is found to be consistently larger than expected from the normal growth hypothesis, both in simulations and experiments.

KW - Directional solidification

KW - Eutectic solidification

KW - Phase field modeling

KW - Solidification microstructure

U2 - 10.1016/j.actamat.2009.11.018

DO - 10.1016/j.actamat.2009.11.018

M3 - Journal article

AN - SCOPUS:74549205341

VL - 58

SP - 1761

EP - 1769

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 5

ER -