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| rdf:type
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| Description
| - Carbon diffusion was studied in three carbon-supersaturated ferrite materials: in pure α-Fe, in model α-Fe–Cr alloy, in commercial ferrite-martensite chromium steel P91 and in two carbon-supersaturated austenite materials: in Fe–Ni–Cr model alloy and in commercial 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 close to the values reported in the literature for C diffusion in the carbide phase. The measured values of D for pure α-Fe, α-Fe–Cr and P91 steel at temperatures above 773 K were identical. However, significantly higher values of D were measured in P91 at temperatures below 773 K, which was ascribed to equilibration of carbon concentration in the Cr steel lattice. The differences observed between the D in the austenite Fe–Ni–Cr alloy and in the AISI 316 were explained by different chemical composition of the two materials.
- Carbon diffusion was studied in three carbon-supersaturated ferrite materials: in pure α-Fe, in model α-Fe–Cr alloy, in commercial ferrite-martensite chromium steel P91 and in two carbon-supersaturated austenite materials: in Fe–Ni–Cr model alloy and in commercial 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 close to the values reported in the literature for C diffusion in the carbide phase. The measured values of D for pure α-Fe, α-Fe–Cr and P91 steel at temperatures above 773 K were identical. However, significantly higher values of D were measured in P91 at temperatures below 773 K, which was ascribed to equilibration of carbon concentration in the Cr steel lattice. The differences observed between the D in the austenite Fe–Ni–Cr alloy and in the AISI 316 were explained by different chemical composition of the two materials. (en)
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| Title
| - Carbon diffusion in carbon-supersaturated ferrite and austenite
- Carbon diffusion in carbon-supersaturated ferrite and austenite (en)
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| skos:prefLabel
| - Carbon diffusion in carbon-supersaturated ferrite and austenite
- Carbon diffusion in carbon-supersaturated ferrite and austenite (en)
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| skos:notation
| - RIV/68081723:_____/14:00398590!RIV14-MSM-68081723
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - I, P(ED1.1.00/02.0068), P(GAP108/11/0148)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68081723:_____/14:00398590
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - carbon diffusion; Carbon supersaturation; Carbon supersaturation; Ferrite; Austenite (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Journal of Alloys and Compounds
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Král, Lubomír
- Čermák, Jiří
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| http://linked.open...ain/vavai/riv/wos
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| issn
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| number of pages
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| http://bibframe.org/vocab/doi
| - 10.1016/j.jallcom.2013.10.058
|
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