Effect of molybdenum addition on microstructure and behavior of AlCoCrFeNi high-entropy alloys in wet environments
Artykuł w czasopiśmie
MNiSW
140
Lista 2024
| Status: | |
| Autorzy: | Walczak Mariusz, Nowak Wojciech J., Szala Mirosław, Grądzka‑Dahlke Małgorzata, Maciaszek Natalia , Vališ David, Pasierbiewicz Kamil |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2025 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 205 |
| Wolumen/Tom: | 25 |
| Strony: | 1 - 22 |
| Impact Factor: | 4,4 |
| Web of Science® Times Cited: | 4 |
| Scopus® Cytowania: | 3 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| URL danych badawczych | LINK |
| Finansowanie: | The research leading to these results has received funding from the commissioned task entitled "VIA CARPATIA Universities of Technology Network named after the President of the Republic of Poland Lech Kaczyński” Contract No. MEiN/2022/DPI/2575, MEiN/2022/DPI/2577, MEiN/2022/DPI/2578 action entitled "ISKRA—building interuniversity research teams. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 30 czerwca 2025 |
| Abstrakty: | angielski |
| The materials used for the components operating in harsh fluid environments are required to have excellent resist- ance to various forms of wear (sliding wear, cavitation and corrosion). High-entropy alloys (HEA) appear to be quite the promising materials in this respect of applications. In this work, influences of Mo on corrosion, cavita- tion and wear of AlCoCrFeNi HEAs in fluid environments were investigated. AlCoCrFeNi-xMo (x = 0, 1, 2, 3, 4, 5 at.%) HEAs were manufactured by vacuum arc melting. In addition, influences of Mo on corrosion, cavitation and wear of AlCoCrFeNi HEAs in fluid environments were investigated and compared with stainless steel AISI 304L. Tribological tests were carried out using the ball-on-disc method in 3.5% NaCl solution, and the surfaces that showed traces of abrasion to identify the wear mechanisms were subjected to SEM and EDS analyses. The potentiodynamic polarization tests were carried out in 3.5% NaCl solution in a three-electrode electrochemical system. Cavitation erosion resistance was estimated using the ASTM G32 standard. In general, molybdenum can improve the cavitation resistance and the wear ability of AlCoCrFeNi alloy with increased hardness and higher corrosion resistance. However, as the Mo content exceeded a certain level (4 and 5 at.% Mo), the cavitation ero- sion of Mo containing alloys was accelerated which led to a negative effect on the cavitation resistance, although the alloys showed higher hardness. The results of corrosion studies confirm that molybdenum-modified HEAs have a better resistance than stainless steels for preventing fluid environment damage to the metallic components. |
