About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Next Generation Biomaterials
|
| Presentation Title |
Achieving Linear Superelasticity in NiTi by Tailoring Martensitic Transformation Through Composition Modulation |
| Author(s) |
Vidyanidhi Kabanur, Zexu Chen, Yunzhi Wang |
| On-Site Speaker (Planned) |
Vidyanidhi Kabanur |
| Abstract Scope |
NiTi shape memory alloys typically exhibit strain bursts and large hysteresis during cyclic loading due to the first-order nature of martensitic transformations. Recent studies have shown that composition modulation can effectively suppress these effects by constraining the transformation pathway. In this work, we design compositional modulations guided by habit plane orientations to control the martensitic transformation behavior. This approach successfully limits transformation-induced strain localization, suppresses strain bursts, and significantly reduces hysteresis. As a result, the alloy exhibits a near-linear superelastic response. These findings demonstrate a promising strategy for achieving stable, linear superelasticity in NiTi alloys through targeted control of transformation characteristics. |