Hübler, Daniela ; Winkler, Kai ; Riedel, Ralf ; Kamrani, Sepideh ; Fleck, Claudia (2022)
Cyclic deformation behavior of Mg–SiC nanocomposites on the macroscale and nanoscale.
In: Fatigue & Fracture of Engineering Materials & Structures, 45 (2)
doi: 10.1111/ffe.13600
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Metal-ceramic nanocomposites are promising candidates for applications necessitating light weight and excellent fatigue resistance. We produced Mg-SiC nanocomposites from mechanically milled powders, yielding a homogeneous nanocrystalline structure and excellent quasistatic strength values. Little is known, however, about the fatigue behavior of such composites. Here, we used load increase tests on the macroscale to yield estimation values of the fatigue endurance limit. Fatigue strength increased significantly for the materials processed by the powder metallurgical route. We further investigated the cyclic deformation behavior under stress-controlled conditions on the macroscale and nanoscale. Cyclic nanoindentation showed that indentation depth and cyclic plastic deformation decreased with increasing reinforcement content, hinting to a higher cyclic strength and corroborating the results from the macroscopic load increase tests. Our results therefore show that cyclic nanoindentation reliably determines the plastic deformation behavior of Mg nanocomposites offering the possibility of fast material analysis.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Hübler, Daniela ; Winkler, Kai ; Riedel, Ralf ; Kamrani, Sepideh ; Fleck, Claudia |
| Art des Eintrags: | Bibliographie |
| Titel: | Cyclic deformation behavior of Mg–SiC nanocomposites on the macroscale and nanoscale |
| Sprache: | Englisch |
| Publikationsjahr: | Februar 2022 |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Fatigue & Fracture of Engineering Materials & Structures |
| Jahrgang/Volume einer Zeitschrift: | 45 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1111/ffe.13600 |
| URL / URN: | https://onlinelibrary.wiley.com/doi/10.1111/ffe.13600 |
| Kurzbeschreibung (Abstract): | Metal-ceramic nanocomposites are promising candidates for applications necessitating light weight and excellent fatigue resistance. We produced Mg-SiC nanocomposites from mechanically milled powders, yielding a homogeneous nanocrystalline structure and excellent quasistatic strength values. Little is known, however, about the fatigue behavior of such composites. Here, we used load increase tests on the macroscale to yield estimation values of the fatigue endurance limit. Fatigue strength increased significantly for the materials processed by the powder metallurgical route. We further investigated the cyclic deformation behavior under stress-controlled conditions on the macroscale and nanoscale. Cyclic nanoindentation showed that indentation depth and cyclic plastic deformation decreased with increasing reinforcement content, hinting to a higher cyclic strength and corroborating the results from the macroscopic load increase tests. Our results therefore show that cyclic nanoindentation reliably determines the plastic deformation behavior of Mg nanocomposites offering the possibility of fast material analysis. |
| Freie Schlagworte: | cyclic deformation behavior, cyclic nanoindentation, fatigue behavior, load increase test, Mg-SiC nanocomposite, FINAL FRACTURE-BEHAVIOR, OPEN-SOURCE SOFTWARE, MAGNESIUM ALLOY, MECHANICAL-BEHAVIOR, FATIGUE BEHAVIOR, VOLUME FRACTION, TEXTURE, MICROSTRUCTURE, NANOPARTICLES, TEMPERATURE |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 17 Jan 2022 06:14 |
| Letzte Änderung: | 17 Jan 2022 06:14 |
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