| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Austenite Formation and Decomposition V: A Symposium in Memory of Prof. Mats Hillert
|
| Presentation Title |
Optimization of Duplex Medium Manganese Steel Microstructures by High-Throughput Characterization Methods |
| Author(s) |
Olha Nakonechna, Guillaume Geandier, Imed-Eddine Benrabah, Benoit Denand, Lionel Germain, Hugo Van Landeghem, Alexis Deschamps, Sébastien Allain |
| On-Site Speaker (Planned) |
Olha Nakonechna |
| Abstract Scope |
Duplex (triplex) microstructures of medium manganese steel provide an impressive combination of high strength and ductility. The link between the microstructure and mechanical behaviour of this steel is now quite well understood. However, the prediction and optimisation of the final properties are highly sensitive to the processing parameters. Thus, a reliable and quantitative link between processes/microstructures/properties has to be still established. Therefore, the aim of this study is to propose a complete combinatorial high-throughput methodology to accelerate the investigation of the formation mechanisms of these complex nanostructured microstructures. To do that, the materials with macroscopic composition gradients of substitutional elements were fabricated and used to perform time and space-resolved in situ high-energy X-ray diffraction experiments. These experiments reveal an original way to explore wide manufacturing spaces (composition and processing conditions) in a single experiment. As a result, a large experimental data set on process/microstructure/property relationships has been obtained. |