About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
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Computational Thermodynamics and Kinetics
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Presentation Title |
Simulation and Experimental Characterization of Intragranular Ferrite Nucleation on Deformation Induced (Ti,V)(C,N) Precipitates in Microalloyed Steel |
Author(s) |
Evelyn Sobotka, Johannes Kreyca, Nora Fuchs, Tomasz Wojcik, Erwin Povoden-Karadeniz |
On-Site Speaker (Planned) |
Evelyn Sobotka |
Abstract Scope |
Predictive thermokinetic simulations of intragranular ferrite nucleation on (Ti,V)(C,N) MX precipitates are expected to support the process development and cost savings of technological steel production. In this work, the role of microalloying elements on ferrite formation is investigated experimentally as well as by computational simulation. During thermo-mechanical treatments of microalloyed steels, deformation induced MX carbonitrides provide potential pre-nuclei for intragranular ferrite formation. Heat treatments and isothermal single-hit compression tests are performed on a Gleeble 3800 thermo-mechanical simulator to investigate the ferrite nucleation processes and microstructure evolution of a Ti, Nb, and V microalloyed steel grade. For in-situ observations, high temperature laser scanning confocal microscopy (HT-LSCM) is used. The nanoscale examination and chemical analysis of the phases is carried out by transmission electron microscopy (TEM). The experimental data serves as validation base of the on-particle nucleation model used for the precipitation of ferrite on the surface of MX carbonitrides. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Characterization |