Carbon diffusion in carbon-supersaturated ferrite and austenite

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00398590" target="_blank" >RIV/68081723:_____/14:00398590 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jallcom.2013.10.058" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2013.10.058</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2013.10.058" target="_blank" >10.1016/j.jallcom.2013.10.058</a>

Result language
angličtina
Original language name
Carbon diffusion in carbon-supersaturated ferrite and austenite
Original language description
Carbon diffusion was studied in three carbon-supersaturated ferrite materials: in pure ?-Fe, in model ?-Fe?Cr alloy, in commercial ferrite-martensite chromium steel P91 and in two carbon-supersaturated austenite materials: in Fe?Ni?Cr model alloy and incommercial steel AISI 316. The carbon surface layer, the thickness of which was about 40 nm, was physical-vapor-deposited and isothermal diffusion anneals were carried out at selected temperatures between 573 K and 1073 K. The depth profiles of carbon were measured by SIMS. It was found that carbon diffusion proceeds much more slowly in carbon-supersaturated austenite and ferrite matrices than in matrices with an equilibrium carbon concentration. The carbon diffusion coefficients obtained, D, were closeto the values reported in the literature for C diffusion in the carbide phase. The measured values of D for pure ?-Fe, ?-Fe?Cr and P91 steel at temperatures above 773 K were identical. However, significantly higher values of D were measu
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BJ - Thermodynamics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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