| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced High Strength Steels IV
|
| Presentation Title |
Effect of Strain Path on the Deformation Characteristics of Austenite-containing Advanced High Strength Steels |
| Author(s) |
Melissa M. Thrun, Amy Clarke, Magnus Ahlfors, Christopher Finfrock, Kester Clarke |
| On-Site Speaker (Planned) |
Melissa M. Thrun |
| Abstract Scope |
Third generation Advanced High Strength Steels (AHSSs) such as Quenched and Partitioned (Q&P), and Transformation Induced Plasticity (TRIP) bainitic ferrite (TBF) steels achieve high strength and ductility through the transformation of metastable austenite to martensite during deformation. Q&P heat treatment parameters, such as quench temperature, partitioning temperature and time, and ambient pressure can result in varying amounts of retained austenite with varying thermal and mechanical stability. The rate of the transformation of the austenite retained is dependent on variables such as temperature, strain path, strain rate, and surrounding microstructure; therefore, the deformation behavior of Q&P and TBF steels are also dependent on these variables. This work investigates the rate of transformation from austenite to martensite by varying the deformation conditions of steels containing metastable austenite to understand the microstructural evolution and stability of austenite and how it relates to the mechanical properties of the sheet. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |