| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
A New Approach to the Design of Al Alloys with Low Cracking Susceptibility and High-Temperature Strength for Casting and Additive Manufacturing |
| Author(s) |
Chengbo Zhu, Da Guo, Kai Zhang, Iakovos Tzanakis, Alex Leung, Peter Lee, Dmitry Eskin |
| On-Site Speaker (Planned) |
Chengbo Zhu |
| Abstract Scope |
Aluminium alloys are widely used in the aerospace and automotive industries due to their excellent strength-to-weight ratio and corrosion resistance. There has been a demand for cost-effective alloys in applications at elevated temperatures. We propose two novel aluminium (Al) alloys based on the Al-Fe-Mn-Ni-Ce system that reduce cracking susceptibility and are capable of maintaining their microstructure and strength at high temperatures (T>~0.5T_m, where T_m is the absolute melting temperature of Al). We designed the alloys with a low cracking susceptibility and a small freezing range. These alloys were cast in a wedge mound, and we measured their solidification shrinkage to screen for optimum compositions. The microstructural morphologies of the designed alloys were examined across a range of cooling rates. The methodology proposed here can be applied to design alloys with low cracking susceptibility and high-temperature strength for castings and additive manufacturing. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Solidification, |