About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Additive Manufacturing: Advanced Characterization With Synchrotron, Neutron, and In Situ Laboratory-scale Techniques IV
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| Presentation Title |
Investigation of solidification behaviour and high-temperature performance of Al-Ce-Fe-Ni-Mn aluminium alloys in additive manufacturing |
| Author(s) |
Chengbo Zhu, Da Guo, Iakovos Tzanakis, Chu Lun Alex Leung, Peter D. Lee, Dmitry Eskin |
| On-Site Speaker (Planned) |
Dmitry Eskin |
| Abstract Scope |
Additive manufacturing (AM) has significant potential for fabricating lightweight aluminium structural components while minimising material waste, advantages that conventional manufacturing methods cannot readily achieve. However, a key challenge hindering broader industry adoption of AM is the lack of suitable high-performance aluminium alloys. Traditional alloys developed for conventional processes often experience severe cracking under the rapid cooling conditions inherent to AM. Here, we report a new Al–Ce–Fe–Ni–Mn alloy system with a low cracking susceptibility. Its solidification behaviour during directed energy deposition (DED) was investigated using in situ synchrotron X-ray diffraction. The mechanical properties of Al–Ce–Fe–Ni–Mn alloy were evaluated at 25 and 300 °C and benchmarked against the AlSi10Mg alloy using profilometry-based indentation plastometry. The results showed that the new alloy retains approximately half of its room-temperature yield strength at 300 °C, while outperforming AlSi10Mg by a factor of two under identical fabrication and testing conditions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Characterization |