This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1149/1.3590258 in citations.
Subsurface Depletion and Enrichment Processes During Oxidation of a High Chromium, Laves-Phase Strengthened Ferritic Steel
Subsurface Depletion and Enrichment Processes During Oxidation of a High Chromium, Laves-Phase Strengthened Ferritic Steel
During oxidation of a Laves-phase strengthened ferritic steel at 800 degrees C in Ar/H-2/H2O a precipitate-depleted zone occurs as a result of subscale chromium depletion. In parallel, an enrichment of Laves-phase is found in the immediate vicinity of the scale/alloy interface. Modeling the phase eq...
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Personal Name(s): | Asensio, C. |
---|---|
Chyrkin, A. / Niewolak, L. / Konoval, V. / Hattendorf, H. / Kuhn, B. / Singheiser, L. / Quadakkers, W.J. | |
Contributing Institute: |
Werkstoffstruktur und -eigenschaften; IEK-2 |
Published in: | Electrochemical and solid-state letters, 14 (2011) S. 17 - 20 |
Imprint: |
Pennington, NJ
Soc.
2011
|
Physical Description: |
17 - 20 |
DOI: |
10.1149/1.3590258 |
Document Type: |
Journal Article |
Research Program: |
Rationelle Energieumwandlung |
Series Title: |
Electrochemical and Solid State Letters
14 |
Subject (ZB): | |
Publikationsportal JuSER |
During oxidation of a Laves-phase strengthened ferritic steel at 800 degrees C in Ar/H-2/H2O a precipitate-depleted zone occurs as a result of subscale chromium depletion. In parallel, an enrichment of Laves-phase is found in the immediate vicinity of the scale/alloy interface. Modeling the phase equilibria and diffusion processes for an Fe-Cr-Nb model alloy using Thermo-Calc and DICTRA revealed that this combined enrichment/depletion process can be explained by the influence of alloy chromium concentration on the Nb activity. (C) 2011 The Electrochemical Society. [DOI: 10.1149/1.3590258] All rights reserved. |