Carbon diffusion in carbon-supersaturated ferrite and austenite

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon diffusion in carbon-supersaturated ferrite and austenite

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Carbon diffusion in carbon-supersaturated ferrite and austenite

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

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Svazek periodika

586

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

129-135

Kód UT WoS článku

000329856800021

EID výsledku v databázi Scopus

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