|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Thermo-mechanical Response of Materials with Special Emphasis on In-situ Techniques
||Phase Transformation during Thermal Treatment of Medium Mn Steels Studied by In-situ Synchrotron Experiments and Thermodynamic Modeling
||Xiaohua Hu, Kyoo Sil Choi, Guang Cheng, Xin Sun, Josh Mueller, Emmanuel de Moor, Jon Speer, David Matlock
|On-Site Speaker (Planned)
Conventional approaches of metallic materials development involve heat treatment processes to obtain desirable microstructures. The medium Mn steel is one of the third generation advanced high strength steels for vehicle lightweighting due to its combined strength and ductility from TRIP effects. The traditional approaches involve a lot of experiments and time consuming. Furthermore, the TRIP effects come from austenite to martensite transformation. The characterization of austenite volume fraction (AVF) changes during heat treatment are of key importance to fully understand this process. From the conventional approach, the AVF can only be obtained at room temperatures. Here, a combined in-situ HEXRD experiments and numerical study will be employed to study the phase transformation during the heat treatment processes of 7Mn and 10Mn steels and aims to achieve accurate thermodynamic and kinetic data for different phases, which are able to simulate accurately the phase transformation and microstructure evolutions during these processes.
||Planned: Supplemental Proceedings volume