Iron self diffusion in liquid pure iron and iron-carbon alloys

Journal article


Publication Details

Author(s): Meyer A, Hennig L, Kargl F, Unruh T
Journal: Journal of Physics: Condensed Matter
Publication year: 2019
Volume: 31
Journal issue: 39
ISSN: 0953-8984
eISSN: 1361-648X


Abstract

With incoherent quasielastic neutron scattering self-diffusion coefficients D-s in pure iron, and iron-carbon alloys containing 8.7 at% and 16.9 at% carbon have been measured. At the melting point D-s in liquid iron is 2.8(1) x 10(-9) m(2) s(-1). For the close-to-eutectic Fe83.1C16.9 composition D-s = 1.33(12) x 10(-9) m(2) s(-1) at T-liq = 1432 K. Contradicting conclusions drawn from literature values of tracer diffusion experiments the addition of carbon has only a minor effect on the iron mobility: at a given temperature the self-diffusion coefficient in Fe83.1C16.9 is only 10% larger than in liquid iron, although mixing has a drastic effect on liquidus temperature and phase behavior.


FAU Authors / FAU Editors

Unruh, Tobias Prof. Dr.
Professur für Nanomaterialcharakterisierung (Streumethoden)


External institutions with authors

Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)


How to cite

APA:
Meyer, A., Hennig, L., Kargl, F., & Unruh, T. (2019). Iron self diffusion in liquid pure iron and iron-carbon alloys. Journal of Physics: Condensed Matter, 31(39). https://dx.doi.org/10.1088/1361-648X/ab2855

MLA:
Meyer, A., et al. "Iron self diffusion in liquid pure iron and iron-carbon alloys." Journal of Physics: Condensed Matter 31.39 (2019).

BibTeX: 

Last updated on 2019-26-07 at 14:38