Freudenberger, J. ; Thiel, F. ; Utt, D. ; Albe, K. ; Kauffmann, A. ; Seils, S. ; Heilmaier, M. (2022)
Solid solution strengthening in medium- to high-entropy alloys.
In: Materials Science and Engineering: A, 861
doi: 10.1016/j.msea.2022.144271
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A fundamental understanding of the strength of multi-component alloys relies on well-defined experiments accompanied by accurate modelling. Whilst much work has been done so far for equi-atomic alloys, little has been done to investigate the effect of solid solution strengthening for alloys with deliberately adjusted, non-equimolar composition that are varied in certain concentration steps, including particularly continuous changes between equimolar subsets of alloy systems. This systematic approach is a key tool to verify or falsify current theories for solid solution strengthening for highly concentrated alloys. Series of alloys where a fifth element is alloyed to an equi-atomic four component alloy were prepared from Au, Cu, Ni, Pd and Pt, respectively. All investigated alloys form a single-phase solid solution, which is proven on a wide range of length scale by means of XRD, SEM and APT measurements. The mechanical properties of the series are compared to the predicted yield stresses calculated upon the model of Varvenne et al., (2017). The present results highlight coincident and discrepant results between experiment and model.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Freudenberger, J. ; Thiel, F. ; Utt, D. ; Albe, K. ; Kauffmann, A. ; Seils, S. ; Heilmaier, M. |
| Art des Eintrags: | Bibliographie |
| Titel: | Solid solution strengthening in medium- to high-entropy alloys |
| Sprache: | Englisch |
| Publikationsjahr: | 19 Dezember 2022 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials Science and Engineering: A |
| Jahrgang/Volume einer Zeitschrift: | 861 |
| DOI: | 10.1016/j.msea.2022.144271 |
| Kurzbeschreibung (Abstract): | A fundamental understanding of the strength of multi-component alloys relies on well-defined experiments accompanied by accurate modelling. Whilst much work has been done so far for equi-atomic alloys, little has been done to investigate the effect of solid solution strengthening for alloys with deliberately adjusted, non-equimolar composition that are varied in certain concentration steps, including particularly continuous changes between equimolar subsets of alloy systems. This systematic approach is a key tool to verify or falsify current theories for solid solution strengthening for highly concentrated alloys. Series of alloys where a fifth element is alloyed to an equi-atomic four component alloy were prepared from Au, Cu, Ni, Pd and Pt, respectively. All investigated alloys form a single-phase solid solution, which is proven on a wide range of length scale by means of XRD, SEM and APT measurements. The mechanical properties of the series are compared to the predicted yield stresses calculated upon the model of Varvenne et al., (2017). The present results highlight coincident and discrepant results between experiment and model. |
| Zusätzliche Informationen: | Artikel-ID: 144271 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung |
| Hinterlegungsdatum: | 13 Mär 2023 06:45 |
| Letzte Änderung: | 13 Mär 2023 06:45 |
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