Rare metals, 2023-11, Vol.42 (11), p.3797-3805
2023
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- Autor(en) / Beteiligte
- Titel
- Effect of microstructure evolution on wear resistance of equal molar CoCrFeNi high-entropy alloy
- Ist Teil von
- Rare metals, 2023-11, Vol.42 (11), p.3797-3805
- Ort / Verlag
- Beijing: Nonferrous Metals Society of China
- Erscheinungsjahr
- 2023
- Quelle
- 2022 ECC(Springer)
- Beschreibungen/Notizen
- Face-centered-cubic high-entropy alloys have excellent ductility and great potential for engineering applications. However, few studies have reported on the wear behavior under different loads. This study aimed to investigate the tribological behavior of CoCrFeNi high-entropy alloy under different loads. The wear rate increased with the load, and the main wear behavior was abrasive wear. The cross-sectional microstructure of worn surface consisted of oxide, nanocrystalline, nanolaminated, and deformation layers. Under the higher loads, the deformation mechanism included dislocation slip and deformation twins, and shear bands also appeared. It was unexpectedly found that the wear rate increased sharply under high load, which was attributed to the formation of shear bands and microcracks in the nanocrystalline layer. The results successfully revealed the great influence of microstructure evolution on the wear rate, providing theoretical guidance for improving the wear resistance of face-centered-cubic high-entropy alloys in the future. Graphical abstract
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1001-0521eISSN: 1867-7185DOI: 10.1007/s12598-023-02384-zTitel-ID: cdi_proquest_journals_2882889307
- Format
- –
- Schlagworte
- Abrasive wear, Biomaterials, Chemistry and Materials Science, Deformation mechanisms, Edge dislocations, Energy, Evolution, High entropy alloys, Materials Engineering, Materials Science, Metallic Materials, Microcracks, Microstructure, Nanocrystals, Nanoscale Science and Technology, Original Article, Physical Chemistry, Shear bands, Tribology, Wear rate, Wear resistance