Role of grain boundary sliding in creep of FCC complex solid solutions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00640519" target="_blank" >RIV/68081723:_____/25:00640519 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10853-025-11360-0" target="_blank" >https://link.springer.com/article/10.1007/s10853-025-11360-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10853-025-11360-0" target="_blank" >10.1007/s10853-025-11360-0</a>
Alternative languages
Result language
angličtina
Original language name
Role of grain boundary sliding in creep of FCC complex solid solutions
Original language description
The present study reports on creep in two polycrystalline variants of FCC compositionally complex solid solutions, quinary CrMnFeCoNi (A5), and quaternary CrFeCoNi (A4). Tensile and compression creep experiments were performed at three temperatures, 873, 973 and 1073 K, and a range of applied stress. Apparent creep activation energies measured for the alloy A5 varied between 220 and 262 kJ mol-1, which are systematically lower than activation energies reported for bulk diffusion of any of the five alloy constituents, indicating that grain boundary diffusion contributes to the temperature dependence of creep rate. Based on microstructural investigations, we provide conclusive proof for the occurrence of grain boundary sliding (GBS) at 973 and 873 K in the A4 alloy. A statistically relevant assessment of the GBS sliding parameters after creep of A4 at 873 K showed that up to about 60% of the total accumulated strain in early creep can be attributed to the GBS mechanism.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA14-22834S" target="_blank" >GA14-22834S: Phase Stability and Plasticity in Medium-to-High-Entropy Alloys</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Science
ISSN
0022-2461
e-ISSN
1573-4803
Volume of the periodical
60
Issue of the periodical within the volume
39
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
18549-18559
UT code for WoS article
001564667800001
EID of the result in the Scopus database
2-s2.0-105015483079