Microstructure and Creep Behavior of Fe-27Al-1Nb Alloys with Added Carbon
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10320278" target="_blank" >RIV/00216208:11320/15:10320278 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/15:00448406
Result on the web
<a href="http://dx.doi.org/10.1007/s11661-015-2756-0" target="_blank" >http://dx.doi.org/10.1007/s11661-015-2756-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11661-015-2756-0" target="_blank" >10.1007/s11661-015-2756-0</a>
Alternative languages
Result language
angličtina
Original language name
Microstructure and Creep Behavior of Fe-27Al-1Nb Alloys with Added Carbon
Original language description
The effect of Nb and C additions on the phase composition, microstructure, and creep resistance of Fe3Al-type alloys is investigated. Two alloys, which contained (at. pct) (i) 27.6 Al, 1.15 Nb and 0.19 C (Fe balance) and (ii) 27.1 Al, 1.11 Nb, and 0.76 C (Fe balance), were studied in a temperature range from 873 K to 1073 K (600 A degrees C to 800 A degrees C). The carbide in both alloys was identified as Nb6C5. The creep data can be rationalized by introducing a threshold stress, below which, the creep rate is negligible. The threshold stress and an effective stress exponent were found simultaneously by a numerical method. Using the obtained values of the threshold stress, the activation energy of creep was determined to be 328 kJ/mol. The effective stress exponent varied from 2.0 to 3.1. A breakdown of power-law behavior was observed at higher stresses. The transition occurred at the normalized creep rate of , which agrees with the rule suggested by Sherby and Burke and the diffusion coefficient D corresponding to the diffusion of Al in Fe-Al. (C) The Minerals, Metals & Materials Society and ASM International 2015
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP108%2F12%2F1452" target="_blank" >GAP108/12/1452: Optimizing the high temperature mechanical properties of iron aluminides of Fe3Al type with carbide forming elements</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
ISSN
1073-5623
e-ISSN
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Volume of the periodical
46A
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
1580-1587
UT code for WoS article
000350300900020
EID of the result in the Scopus database
2-s2.0-84925516203