|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Phase Transformations in Multi-component Systems: An MPMD Symposium Honoring Gary R. Purdy
||Atomistic Modeling and Experiments of Spinodal Decompostion in Fe-Ni-C Martensite
||Helena Zapolsky, Mykola Lavrskyi, Frederic Danoix, Sophie Cazotte, Sergui Curelea, Renaud Patte, Armen Khachaturyan
|On-Site Speaker (Planned)
Atomic scale modelling using atomic density function theory has been performed to study the aging kinetics of virgin Fe-Ni-C martensite. It has been shown that during aging the fine-scale microstructure with carbon-enriched regions is formed. Simulation results are compared with experimental data obtained by the transmission electronic microscopy (TEM) and 3D atom probe analyses. An important future of aging kinetics is the appearing of carbon-enriched regions as a result of spinodal decomposition. Based on diffraction patterns and modelling results we propose the crystal structure of this carbon-rich phase. During long time aging these zones evaluate and form very thin plates aligned along <120> direction. These findings give a new insight on aging mechanisms in Fe-Ni-C martensites.
||Planned: A print-only volume