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  Vacancy-carbon complexes in bcc iron: Correlation between carbon content, vacancy concentration and diffusion coefficient

Kresse, T., Borchers, C., & Kirchheim, R. (2013). Vacancy-carbon complexes in bcc iron: Correlation between carbon content, vacancy concentration and diffusion coefficient. Scripta Materialia, 69(9), 690-693. doi:10.1016/j.scriptamat.2013.08.001.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0001-D712-8 Version Permalink: https://hdl.handle.net/21.11116/0000-0001-D713-7
Genre: Journal Article

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 Creators:
Kresse, T.1, Author           
Borchers, Christine2, Author           
Kirchheim, Reiner3, 4, 5, Author           
Affiliations:
1Institut für Materialphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany, persistent22              
2Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany, ou_persistent22              
3Institut für Materialphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany, ou_persistent22              
4International Institute for Carbon-Neutral Energy Research (WPI-I2 CNER), Kyushu University, Japan, persistent22              
5Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              

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Free keywords: Bcc iron; Body-centered cubic; Defactant concept; First-principles calculation; Hexagonal close-packed; Ni diffusion; Vacancy concentration; Vacancy-carbon complexes, Calculations; Diffusion; Iron; Nickel, Carbon
 Abstract: Self-diffusion in face-centered cubic (fcc) iron and hexagonal close-packed cobalt as well as Ni diffusion in bcc iron and Co-diffusion in fcc nickel are all accelerated in the presence of dissolved carbon. This is attributed to an enlarged vacancy concentration due to an attractive vacancy-carbon interaction. The enlarged Ni diffusion in body-centered cubic (bcc) iron contradicts conclusions for self-diffusion in bcc iron obtained from first-principles calculations. This discrepancy is discussed in the present study. © 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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Language(s): eng - English
 Dates: 2013-11
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.scriptamat.2013.08.001
BibTex Citekey: Kresse2013690
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Title: Scripta Materialia
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B. V.
Pages: - Volume / Issue: 69 (9) Sequence Number: - Start / End Page: 690 - 693 Identifier: ISSN: 1359-6462
CoNE: https://pure.mpg.de/cone/journals/resource/954926243506