About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Advanced Characterization Techniques for Quantifying and Modeling Deformation
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Presentation Title |
Combining Advanced Characterization Techniques to Rationalize the Multiple Mechanical Behaviors Observed in TRIP/TWIP Ti-alloys |
Author(s) |
Lola Lilensten, Yolaine Danard, Inès Danard, Raphaëlle Guillou, Nathalie Bozzolo, Dominique Thiaudière, Frédéric Prima |
On-Site Speaker (Planned) |
Lola Lilensten |
Abstract Scope |
TRIP/TWIP titanium alloys have attracted a lot of interest, as they enable to reach an unprecedented combination of work hardening and ductility. However, comparison of the compositions proposed in the literature shows that a wide range of mechanical properties is actually obtained, which is not yet fully understood and cannot be predicted by the current design. The combination of advanced characterization techniques, including specific mechanical testing such as cyclic tests, in-situ SEM and EBSD, and in-situ synchrotron XRD, on a few relevant Ti TRIP/TWIP alloys, leads to a better understanding of what makes this family of alloys so diverse in properties. The parameters influencing the work-hardening, such as the type of martensite formed, the type of twinning and the deformed microstructures have notably been investigated. The in-situ approaches and indirect characterizations, like specific mechanical testing or post-deformation observations, are particularly relevant to detect and characterize the reversible stress induced martensite. |
Proceedings Inclusion? |
Planned: |