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On the Monotonic and Cyclic Behavior of an Al‐Mg‐Zn‐Cu‐Si Compositionally Complex Alloy

Sajadifar, Seyed Vahid ; Baumgartner, Jörg ; Krochmal, Marcel ; Maciolek, Andreas ; Klein, Marcus ; Rößer, Moritz ; Graß, Markus ; Fröck, Hannes ; Fehlbier, Martin ; Kessler, Olaf ; Böhm, Stefan ; Oechsner, Matthias ; Melz, Tobias ; Niendorf, Thomas (2024)
On the Monotonic and Cyclic Behavior of an Al‐Mg‐Zn‐Cu‐Si Compositionally Complex Alloy.
In: Advanced Engineering Materials, 2023, 25 (21)
doi: 10.26083/tuprints-00027253
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: On the Monotonic and Cyclic Behavior of an Al‐Mg‐Zn‐Cu‐Si Compositionally Complex Alloy
Language: English
Date: 27 May 2024
Place of Publication: Darmstadt
Year of primary publication: November 2023
Place of primary publication: Weinheim
Publisher: Wiley-VCH
Journal or Publication Title: Advanced Engineering Materials
Volume of the journal: 25
Issue Number: 21
Collation: 10 Seiten
DOI: 10.26083/tuprints-00027253
Corresponding Links:
Origin: Secondary publication DeepGreen

In present work, the monotonic and cyclic properties of a novel Al‐Mg‐Zn‐Cu‐Si compositionally complex alloy (CCA) are investigated. Microstructural studies reveal that a eutectic phase and fishbone‐type structures are embedded in the Al‐matrix. The mechanical properties of this CCA obtained under compressive loading are found to be promising. However, low ultimate strength and brittle behavior are seen under tension. The fatigue performance of the alloy in the low‐cycle fatigue (LCF) regime is poor. Microstructural features and fracture surface analysis point to the fact that the presence of brittle intermetallic phases and shrinkage defects are responsible for the poor tensile properties and inferior LCF behavior. Homogenization at 460 and 465 °C for 3 h, 6 h, and 24 h results in spheroidization of all coarse precipitates. However, the heat treatment used is unsuitable to enhance the mechanical properties of this CCA.

Uncontrolled Keywords: Al alloys, compositionally complex alloy, cyclic behavior, fatigue performance, microstructure, monotonic behavior
Identification Number: Artikel-ID: 2300892
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-272535
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Divisions: 16 Department of Mechanical Engineering > Center for Engineering Materials, State Materials Testing Institute Darmstadt (MPA) Chair and Institute for Materials Technology (IfW)
Date Deposited: 27 May 2024 12:44
Last Modified: 27 May 2024 12:44
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/27253
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