|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||Composition Design of Coherent Precipitate-strengthening AlCuFeNiTi Multi-principal Element Alloys by High-throughput CALPHAD-type Calculation
||Shao-Yu Yen, Hao-che Wang, Shih-kang Lin
|On-Site Speaker (Planned)
For decades, multi-principal element alloys (MPEAs), also known as complex concentrated alloys (CCAs) and high entropy alloys (HEAs), has been attracting widely research due to their outstanding mechanical properties such as specific strength and tensile yield strength. Due to the numerous element combinations and multi-dimensional composition space for MPEAs, conventional exploration with trial-and–error experiments to study MPEAs is very costly and time-consuming. With the assistance of computational thermodynamics, the period of new alloy design can be significantly reduced. In this work, high-throughput CALPHAD-type calculation is performed to roughly screen out the γ/γ' coherent precipitates-strengthening Al-Cu-Fe-Ni-Ti system in PanHEA database. Since the amount of precipitates has an influence on the strengthening effect, finer screening is then conducted to sort out the compositions with different phase fraction of L12(γ'). A series of experiments are carried out to verify the calculation results.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume