| Abstrakt: |
High entropy alloys (HEAs) have revolutionized materials science in recent decades by introducing a novel approach to alloy fabrication, capable of yielding exceptional properties. These alloys, with compositions ranging from 5 to 35% in atomic ratio, have opened the door to creating remarkable material characteristics. HEAs acquire their remarkable characteristics through the organization of solid solutions, as opposed to simple compound structures. Although bulk casting techniques have been the common route to produce HEAs, delving into nanostructured iterations carries profound importance due to their extraordinary mechanical and physical properties. Among the array of methods available, solid-state milling stands out as the most efficient approach for crafting HEAs with a nanostructured configuration. In the journey for innovative materials, the effective combination of mechanical alloying (MA) and spark plasma sintering (SPS) stands out as the leading method, paving the way for the development of extensive nanocrystalline composites in the field of HEAs. Understanding the impact of each variable parameter during the MA process on the production of these alloys is crucial, even though certain properties have been investigated individually thus far. Therefore, in addition to an in-depth examination of the influence of various parameters during the MA process, this review has also delved into primary methods for phase prediction, SPS conditions optimization, and the investigation of properties of nanostructured HEAs. The resultant nanocrystalline HEAs exhibit great potential across a range of applications owing to their distinctive amalgamation of mechanical robustness, thermal resilience, and the possibility of novel properties. |
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