| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Atomistic modeling based on the Quasiparticle Approach of the Fcc-bcc Phase Transformations |
| Author(s) |
Helena Zapolsky, Mykola Lavrskyi, Renaud Patte, Olha Nakonechna, Gilles Demange, Frederic Danoix |
| On-Site Speaker (Planned) |
Helena Zapolsky |
| Abstract Scope |
The kinetics of displacive phase transitions belongs to the most fundamental and fascinating fields of materials science. In particular, the microstructure of a steel is often developed by solid-state transformation from the high-temperature face-centered cubic (fcc) austenite to the low-temperature body-centered cubic (bcc) ferrite phases. The complexity of this transformation poses a challenging problem for modelling.
In this paper, the atomistic quasiparticle approach has been used to study the kinetics path during fcc to bcc phase transformation. It is shown that initial bcc nucleus grows as a multivariant aggregate. The atomistic structure and mechanism of propagation of the interface between two variants and between fcc and bcc phases is under discussion. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |