Influence of the Al Content on the Properties of Mechanically Alloyed CoCrFeNiMnXAl20????X High-Entropy Alloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924875" target="_blank" >RIV/60461373:22310/22:43924875 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1996-1944/15/22/7899" target="_blank" >https://www.mdpi.com/1996-1944/15/22/7899</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma15227899" target="_blank" >10.3390/ma15227899</a>
Alternative languages
Result language
angličtina
Original language name
Influence of the Al Content on the Properties of Mechanically Alloyed CoCrFeNiMnXAl20????X High-Entropy Alloys
Original language description
The equiatomic CoCrFeNiMn alloy prepared by mechanical alloying and spark plasmasintering underwent partial substitution of Mn by Al (5, 10 and 15 at.%) to determine its influenceon mechanical properties and thermal stability. It was discovered that the higher the Al content,the higher the volume fraction of the hard phase with primitive cubic (PC) crystallographic lattice,which increases the hardness and strength of the alloys. The most promising mechanical propertieshave been achieved in the CoCrFeNiMn5Al15 alloy reaching the compressive yield strength (CYS)of 2135 21 MPa and the ultimate compressive strength (UCS) of 2496 21 MPa. All the preparedalloys showed good thermal stability as they maintained or only slightly reduced their initial hardnessduring the 100 h annealing at 800 C. Furthermore, the higher the Al content, the higher the resistanceagainst high-temperature oxidation. The oxidic layer changed its composition from Mn-oxides(CoCrFeNiMn15Al15 alloy) to Al-based oxides with exceptional protective properties.
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
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA21-11313S" target="_blank" >GA21-11313S: Design of nanocrystalline composite alloys with high entropy and controllable properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials
ISSN
1996-1944
e-ISSN
—
Volume of the periodical
15
Issue of the periodical within the volume
22
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
nestrankovano
UT code for WoS article
000887441300001
EID of the result in the Scopus database
2-s2.0-85142720571