Unconventional precipitation and martensitic transformation behaviour of Ni-rich NiTi alloy fabricated via laser-directed energy deposition

• Published in: Virtual and physical prototyping Vol. 18; no. 1
• Main Authors: Kang, Jingtao, Li, Ruidi, Zheng, Dan, Wu, Huiting, Wang, Minbo, Niu, Pengda, Li, Jian, Liu, Xinyan, Lai, Duan, Yuan, Tiechui
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 31.12.2023; Taylor & Francis Group
• Subjects: Laser-directed energy deposition; martensitic transformation; ni4ti3; NiTi; precipitation behaviour

In this study, we report an unconventional precipitation and martensitic transformation behaviour of directly aged Ni-rich NiTi alloys fabricated via laser-directed energy deposition (LDED). Ni 4 Ti 3 particles precipitate uniformly under all ageing conditions and no traditional multiple-step marten...