Theoretical evaluation of solid solution interaction in Fe (CoCrMnNi)100- medium- and high-entropy alloys
| Autor: | Nokeun Park, Maya Putri Agustianingrum, Unhae Lee, Dennis Edgard Jodi, Ibrahim Ondicho |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering High entropy alloys Lattice distortion Fe content Thermodynamics 02 engineering and technology Slip (materials science) 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Lower temperature Atomic radius Mechanics of Materials Critical resolved shear stress 0103 physical sciences General Materials Science 0210 nano-technology Solid solution |
| Zdroj: | Materials Science and Engineering: A. 759:633-639 |
| ISSN: | 0921-5093 |
| Popis: | Solid solution interaction in medium- and high-entropy of Fex(CoCrMnNi)100-x (x = 20, 40, 50, and 60 at. %) alloys was evaluated theoretically. The different Fe contents were found to affect the yield strength (σy) of the Fex(CoCrMnNi)100-x system, with higher Fe content leading to reduced σy. The focus of this study was to investigate, using various theoretical approaches, the effect of different Fe contents on the solid solution interaction in the Fex(CoCrMnNi)100-x system. The theoretical approaches demonstrated a decreasing atomic size misfit with increasing Fe content, which reduced lattice distortion. The critical resolved shear stress for slip to occur also decreased with increasing Fe content, leading to the least solid solution contribution with higher Fe content in the Fex(CoCrMnNi)100-x system. The solid solution interaction of the Fex(CoCrMnNi)100-x system at lower temperature was also observed, showing good agreement with the reresults obtained at room temperature. |
| Databáze: | OpenAIRE |
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