| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Austenite Formation and Decomposition V: A Symposium in Memory of Prof. Mats Hillert
|
| Presentation Title |
Magneto-Elastic Synergism in α → γ Transformation in Fe-C Alloys: A Quantitative Phase-Field Modeling Approach |
| Author(s) |
Soumya Bandyopadhyay, Sourav Chatterjee, Michael R. Tonks |
| On-Site Speaker (Planned) |
Soumya Bandyopadhyay |
| Abstract Scope |
This study explores the challenges of quantitatively analyzing microstructural evolution in alloys under a magnetic field during heat treatment. Focusing on Fe-C binary alloy, we employ a diffuse interface approach to integrate magnetic and micro-elastic effects. By incorporating chemical data from the CALPHAD database, the model accurately represents microstructural changes aligned with the phase diagram. Moreover, the model is capable of accurately capturing the influence of eigenstrain, applied stress, demagnetization field effects, and elastic inhomogeneity on microstructure evolution when subjected to an externally applied magnetic field. Simulation results demonstrate a distinct elongated lamella-like morphology under the external magnetic field, corroborating experimental observations. Furthermore, the study examines the combined impact of magnetic and elastic influences on microstructural evolution, offering valuable insights into the complex synergism of these factors in alloy behavior. |