High Fe content in Al-Mg-Si wrought alloys facilitates excellent mechanical properties
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Authors
Organisational units
External Organisational units
- Christian Doppler Laboratory for Advanced Aluminum Alloys
- AMAG rolling GmbH
Abstract
This study investigates the effect of a high volume fraction of Fe-rich intermetallic phases on microstructure evolution and mechanical properties in a cold rolled Al-Mg-Si wrought alloy. A conventional Al-Mg-Si alloy was modified by significantly increasing its Fe and Mn content, while the Si content was adjusted to keep the matrix composition comparable. Subsequent fast solidification and thermomechanical processing generated a dense distribution of fine intermetallic phases, which culminated in significant grain-refinement and uniform texture. The resulting alloy, with almost 10 vol-% Fe-rich intermetallic phase, features an unusually attractive combination of strength and ductility in addition to the substantially increased strain hardening typical of heterostructured materials, and can facilitate a higher usage of scrap input.
Details
Original language | English |
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Article number | 114701 |
Number of pages | 6 |
Journal | Scripta Materialia |
DOIs | |
Publication status | E-pub ahead of print - 31 Mar 2022 |