The nanostructure and mechanical properties of nanocomposite Nb x -CoCrCuFeNi thin films
| Autor: | Tetard, Florent, Braeckman, B.R., Misják, F., Radnóczi, G., Caplovicová, M., Djemia, Ph., Tétard, F., Belliard, L., Depla, D. |
|---|---|
| Přispěvatelé: | Laboratoire des Sciences des Procédés et des Matériaux (LSPM), Université Paris 13 (UP13)-Institut Galilée-Université Sorbonne Paris Cité (USPC)-Centre National de la Recherche Scientifique (CNRS), Biology Department, Universiteit Gent = Ghent University [Belgium] (UGENT), Laboratoire des Milieux Désordonnés et Hétérogènes (LMDH), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Universiteit Gent = Ghent University (UGENT) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nanostructure Alloy 02 engineering and technology engineering.material 01 natural sciences 0103 physical sciences General Materials Science Composite material Ductility ComputingMilieux_MISCELLANEOUS 010302 applied physics Nanocomposite Amorphous metal Mechanical Engineering High entropy alloys Metallurgy Metals and Alloys [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Mechanics of Materials engineering Crystallite 0210 nano-technology Solid solution |
| Zdroj: | Scripta Materialia Scripta Materialia, Elsevier, 2017, 139, pp.155-158. ⟨10.1016/j.scriptamat.2017.06.046⟩ Scripta Materialia, 2017, 139, pp.155-158. ⟨10.1016/j.scriptamat.2017.06.046⟩ |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2017.06.046⟩ |
| Popis: | The relation between the nanostructure and the mechanical properties of Nb x -CoCrCuFeNi high entropy alloy thin films was explored. With increasing Nb concentration (0 to 24 at.% Nb), a transition from a single phase face-centered cubic solid solution to an amorphous phase is observed. At intermediary Nb fractions (5 to 15 at.% Nb) a nanocomposite structure is formed that consists of nanosized crystallites embedded in an amorphous matrix. The nanocomposite structure leads to an increase in hardness beyond the Hall-Petch breakdown. The shear and Young's moduli decrease with increasing Nb concentration, which is beneficial for the alloy ductility. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect