Possibilities, performance and challenges of nitinol alloy fabricated by Directed Energy Deposition and Powder Bed Fusion for biomedical implants

M Sathishkumar, CP Kumar, SSS Ganesh… - Journal of Manufacturing …, 2023 - Elsevier
Abstract Shape Memory Alloys (SMAs) are metals with unique properties that allow them to
revert to a predefined shape when heated. Thermal and thermo-mechanical treatments can …

Analysis of the Local Functional Evolution in NiTi Shape Memory Alloys by Multicycle Nanoindentations

F Furgiuele, A Greco, P Magarò… - Shape Memory and …, 2023 - Springer
In this work, NiTi pseudoelastic alloy was studied to investigate the local functional response
using nanoindentation. Two different experiments were carried out to analyze the recovery …

Dynamic tensile characteristics of elliptically shaped Ni8Ti9Cr1 rings

K Yan, X Cao, Z Wang, K Chu, H Mei, J Tang… - International Journal of …, 2024 - Elsevier
Thin-walled tubes with elliptically shaped annular sections are widely applied in fuel ducts
and exhaust pipes. However, the tensile mechanical properties of these structures have …

Effect of Ni4Ti3 precipitates on the functional properties of NiTi shape memory alloys: A phase field study

B Xu, Y Sun, C Yu, J Hu, J Zhu, J **ong, Q Kan… - International Journal of …, 2024 - Elsevier
Ni 4 Ti 3 precipitates, which generally exist in aged Ni-rich NiTi shape memory alloys
(SMAs), can have a profound effect on material properties. However, the fundamental …

[HTML][HTML] Berkovich indentation and the Oliver-Pharr method for shape memory alloys

X Gao, D Hong, HM Paranjape, W Zhang… - International Journal of …, 2024 - Elsevier
Advances in instrumentation and interpretation of nanoindentation data with the Oliver-Pharr
(OP) method have fueled the reliable assessment of hardness and elastic modulus …

Enhancement of the three-point bending behavior of a coarse-grained NiTi shape memory alloy with surface heterogeneous gradient microstructure and compressive …

K Yan, P Wei, H Wang, Q Sun - Journal of Alloys and Compounds, 2024 - Elsevier
NiTi shape memory alloys offen subject to bending deformation as common functional
materials. Laser shock peening (LSP) was utilized to fabricate a gradient layer to improve …

[HTML][HTML] Transformation pathway of NiTi shape memory alloy and its modulation based on grain size gradient: A molecular dynamics study

A Zhang, S Zhang, C Du, F Wu, C Li - Journal of Materials Research and …, 2024 - Elsevier
The reduction of grain size to nanoscale is a common approach to enhance material
properties, such as fatigue resistance and overall strength of Shape Memory Alloys (SMAs) …