| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Morphological and Structural Instability of Iron-rich Precipitates in Cu-Fe-Co Alloys |
| Author(s) |
Gilles Demange, Kaixuan Chen, Helena Zapolsky, Renaud Patte, Z.D. Wang |
| On-Site Speaker (Planned) |
Gilles Demange |
| Abstract Scope |
Mechanical properties of metallic alloys strongly depend on their microstructure. In particular, the structure and morphology of precipitates lead to distinct strengthening effects. Recently, it was shown that in the fcc CuFeCo system, the shape of Fe-rich precipitates first undergoes an evolution from sphere to cuboid, and finally to petal-like [1]. When the temperature is decreased, the structure of iron-rich precipitates becomes bcc, and a complex internal structure is observed within precipitates. In this work, we used the standard phase field model (PFM) at the mesoscale, and the recently developed quasi-particle approach (QA) at atomic scale [2], combined with experimental observations, to elucidate this phenomenon during casting and aging process. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |