About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-9: Designing Compositional Modulations to Achieve Linear Superelasticity in NiTi |
| Author(s) |
Vidyanidhi Kabanur, Zexu Chen, Yunzhi Wang |
| On-Site Speaker (Planned) |
Vidyanidhi Kabanur |
| Abstract Scope |
NiTi shape memory alloys typically exhibit pronounced hysteresis and strain localization during cyclic loading due to the first-order nature of martensitic transformations. While compositional modulation has emerged as a promising method to influence transformation pathways, the role of modulation orientation remains largely unexplored. In this work, we investigate how the orientation of the modulation relative to martensitic habit planes determines its ability to control the transformation. We find that orientations deviating significantly from the habit planes effectively constrain the transformation and promote linear superelasticity. Conversely, orientations closely aligned with the habit planes show weaker confinement, allowing strain bursts to persist. These insights establish new design criteria for employing compositional modulation to achieve linear superelasticity in NiTi. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Phase Transformations, Computational Materials Science & Engineering, |