On solute depletion zones along grain boundaries during segregation

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On solute depletion zones along grain boundaries during segregation. / Scheiber, Daniel ; Jechtl, Tobias; Svoboda, Jiri et al.
in: Acta materialia, Jahrgang 182.2022, Nr. 1 January, 01.01.2020, S. 100-107.

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Vancouver

Scheiber D, Jechtl T, Svoboda J, Fischer FD, Romaner L. On solute depletion zones along grain boundaries during segregation. Acta materialia. 2020 Jan 1;182.2022(1 January):100-107. Epub 2019 Okt 25. doi: 10.1016/j.actamat.2019.10.040

Author

Scheiber, Daniel ; Jechtl, Tobias ; Svoboda, Jiri et al. / On solute depletion zones along grain boundaries during segregation. in: Acta materialia. 2020 ; Jahrgang 182.2022, Nr. 1 January. S. 100-107.

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@article{6eafe19b8e4345ca96f7a434ce8fa2cb,
title = "On solute depletion zones along grain boundaries during segregation",
abstract = "We propose a model for predicting the depletion zone arising next to grain boundaries during non-equilibrium segregation. The model directly links to distribution of segregation energies as provided by atomistic simulations. We expose the theoretical framework based on the thermodynamic extremal principle and propose an efficient algorithm to solve the underlying equations. The example of the W-25at%Re is discussed to illustrate the main features of the model. Multi-component segregation kinetics is discussed for segregation of B, C, and N in Mo to illustrate site-competition scenarios. Comparison with earlier results obtained without depletion illustrates the importance of this effects. Finally the depletion zones along GBs are investigated for many different compositions to asses for which material composition and heat treatments they may be observed experimentally. We find that extended depletion zones arise for very small solute concentrations.",
author = "Daniel Scheiber and Tobias Jechtl and Jiri Svoboda and Franz-Dieter Fischer and Lorenz Romaner",
note = "Publisher Copyright: {\textcopyright} 2019 Acta Materialia Inc.",
year = "2020",
month = jan,
day = "1",
doi = "10.1016/j.actamat.2019.10.040",
language = "English",
volume = "182.2022",
pages = "100--107",
journal = "Acta materialia",
issn = "1359-6454",
publisher = "Elsevier",
number = "1 January",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - On solute depletion zones along grain boundaries during segregation

AU - Scheiber, Daniel

AU - Jechtl, Tobias

AU - Svoboda, Jiri

AU - Fischer, Franz-Dieter

AU - Romaner, Lorenz

N1 - Publisher Copyright: © 2019 Acta Materialia Inc.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - We propose a model for predicting the depletion zone arising next to grain boundaries during non-equilibrium segregation. The model directly links to distribution of segregation energies as provided by atomistic simulations. We expose the theoretical framework based on the thermodynamic extremal principle and propose an efficient algorithm to solve the underlying equations. The example of the W-25at%Re is discussed to illustrate the main features of the model. Multi-component segregation kinetics is discussed for segregation of B, C, and N in Mo to illustrate site-competition scenarios. Comparison with earlier results obtained without depletion illustrates the importance of this effects. Finally the depletion zones along GBs are investigated for many different compositions to asses for which material composition and heat treatments they may be observed experimentally. We find that extended depletion zones arise for very small solute concentrations.

AB - We propose a model for predicting the depletion zone arising next to grain boundaries during non-equilibrium segregation. The model directly links to distribution of segregation energies as provided by atomistic simulations. We expose the theoretical framework based on the thermodynamic extremal principle and propose an efficient algorithm to solve the underlying equations. The example of the W-25at%Re is discussed to illustrate the main features of the model. Multi-component segregation kinetics is discussed for segregation of B, C, and N in Mo to illustrate site-competition scenarios. Comparison with earlier results obtained without depletion illustrates the importance of this effects. Finally the depletion zones along GBs are investigated for many different compositions to asses for which material composition and heat treatments they may be observed experimentally. We find that extended depletion zones arise for very small solute concentrations.

UR - http://www.scopus.com/inward/record.url?scp=85074303381&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2019.10.040

DO - 10.1016/j.actamat.2019.10.040

M3 - Article

VL - 182.2022

SP - 100

EP - 107

JO - Acta materialia

JF - Acta materialia

SN - 1359-6454

IS - 1 January

ER -