|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Defects and Properties of Cast Metals
||Evaluation of Hot Cracking Sensitivity Using Multiphase Field and FE Methods during Continuous Casting of Nb Microalloyed Gear Steels
||Viktor Kripak, Ulrich Prahl, Wolfgang Bleck
|On-Site Speaker (Planned)
Integrated Computational Materials Engineering (ICME) is a simulation platform, used for numerical optimization of materials and process chains. As a part of this platform, hot cracking sensitivity of Nb alloyed steels are analyzed as a function of its chemical composition at continuous casting conditions. The factors like grain nucleation. segregation, phase evolution and precipitation which during solidification are expected to effect the cracking sensitivity, are numerically simulated on microscale using multiphase field approach. From the simulation results, the significant difference in the steels with and without Nb are quantitatively evaluated and correlated with hot cracking behavior using Rappaz-Drezet-Gremaud (RDG) criterion. FE model with integrative flow curves represents the local stress distribution as a function of the time, temperature and deformation on the macroscopic scale. By combining the capabilities of microscale and macroscale simulation provides the information to optimize process parameters and eventually reduce hot cracking during solidification in casting process.
||Planned: Supplemental Proceedings volume