CoCrFeNiMn High-Entropy Alloy With Graphite And Plasma-Gasified Carbon Addition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00390904" target="_blank" >RIV/68407700:21340/25:00390904 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.59499/EP256764300" target="_blank" >https://doi.org/10.59499/EP256764300</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.59499/EP256764300" target="_blank" >10.59499/EP256764300</a>

Result language
angličtina
Original language name
CoCrFeNiMn High-Entropy Alloy With Graphite And Plasma-Gasified Carbon Addition
Original language description
CoCrFeNiMn alloy in equiatomic composition was prepared from pure metals by powder metallurgy, and the reinforcing carbides were formed in situ after adding 1 wt.% of two precursors - machined graphite (C) and plasma-gasified carbon (PG). The powder was either mixed with the precursors, or 30 min. of mechanical alloying (MA) in a planetary ball mill was carried out. The microstructure, phase composition, and mechanical properties of spark plasma sintered (SPS) compacts were studied. During sintering, the matrix remained as an FCC phase while Cr23C6 carbides, which formed throughout MA, transformed to Cr7C3. The best mechanical properties were achieved for the PG-reinforced alloy after 30 min of MA. This material reached a compressive yield strength (CYS) of 1237 ± 50 MPa and ultimate compressive strength (UCS) of 1998 ± 46 MPa, together with ductility of 25%. The MA+SPS reference alloy compacts without carbide reinforcement had CYS of 988 ± 14 MPa; the UCS was not measured because of the very high plasticity of the alloy (no fracture occurred).
Czech name
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Czech description
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Project
<a href="/en/project/GA24-10767S" target="_blank" >GA24-10767S: Advanced high-entropy alloys reinforced by in-situ grown carbides formed from various types of nanostructured carbon precursors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
European Powder Metallurgy Association Proceedings
ISBN
9798331328221
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
European Powder Metallurgy Association
Place of publication
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Event location
Glasgow
Event date
Sep 14, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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