| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys, Processing and Characterization
|
| Presentation Title |
Microstructure Evolution of an Al-Fe-Ni Alloy with Zr and Sc Additions Upon Different Cooling Rates during Solidification for Improving the Mechanical and Electrical Conductivity Properties |
| Author(s) |
Suwaree Chankitmunkong, Dmitry G Eskin, Chaowalit Limmaneevichitr |
| On-Site Speaker (Planned) |
Chaowalit Limmaneevichitr |
| Abstract Scope |
Al-Fe-Ni eutectic alloys have high potential to replace conventional low-conductivity Al casting alloys for various electronic and electrical applications. Furthermore, the addition of Zr and Sc up to 0.3 wt% improves hardness and thermal stability for higher temperature applications, which is a result of the fine Al-Fe-Ni eutectic structure and precipitation hardening by Al3Zr and/or Al3Sc nanoprecipitates. Thus, the aim of this study was to analyze the microstructure changes in an Al-1.75 wt% Fe-1.25 wt% Ni eutectic alloy with Zr and Sc additions upon different cooling rates during solidification. The morphology and dimensions of Al-Fe-Ni eutectics, constitutive intermetallics and eutectic grains were examined in relation to the cooling rate. Mechanical properties and electrical conductivity were examined and correlated to the structure changes. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Solidification |