Phase and Mechanical Properties Response of the Mechanically Alloyed CoCrFeNiAlX High Entropy Alloys

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924866" target="_blank" >RIV/60461373:22310/22:43924866 - isvavai.cz</a>
Result on the web
<a href="https://journalmt.com/artkey/mft-202204-0014_phase-and-mechanical-properties-response-of-the-mechanically-alloyed-cocrfenialx-high-entropy-alloys.php" target="_blank" >https://journalmt.com/artkey/mft-202204-0014_phase-and-mechanical-properties-response-of-the-mechanically-alloyed-cocrfenialx-high-entropy-alloys.php</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21062/mft.2022.059" target="_blank" >10.21062/mft.2022.059</a>

Result language
angličtina
Original language name
Phase and Mechanical Properties Response of the Mechanically Alloyed CoCrFeNiAlX High Entropy Alloys
Original language description
The present work describes the influence of Al content on the CoCrFeNiAl high-entropy alloys prepared by the powder metallurgy technique. The preparation procedure consisted of mechanical alloying and subsequent spark plasma sintering. The content of Al varied from 10 – 30 at.% which affected the microstructure and mechanical properties. Using scanning electron microscope (SEM) and X-ray diffraction analysis (XRD) was found the microstructure becomes more grain refined with increasing content of Al accompanied by the annihilation of the ductile FCC solid solution (Cr0.25Fe0.25Co0.25Ni0.25) phase and growth of the brittle and hard BCC solid solution phase (α-Fe) and formation of Al(Co0.5Ni0.5) phases, improving the mechanical properties. The best combination of the porosity, hardness HV 30, and ultimate compressive strength (UCS) was achieved for the studied high-entropy alloy when it contained 20 at. % Al. © 2022 Manufacturing Technology. All rights reserved.
Czech name
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Czech description
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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

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)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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