Additive manufacturing of NiTi shape memory alloy for biomedical applications: review of the LPBF process ecosystem

K Safaei, H Abedi, M Nematollahi, F Kordizadeh… - Jom, 2021 - Springer
NiTi shape memory alloys (SMAs) are used in a broad range of biomedical applications
because of their unique properties including biocompatibility and high corrosion and wear …

Additive manufacturing: an opportunity for the fabrication of near-net-shape NiTi implants

MS Safavi, A Bordbar-Khiabani, J Khalil-Allafi… - … of Manufacturing and …, 2022 - mdpi.com
Nickel–titanium (NiTi) is a shape-memory alloy, a type of material whose name is derived
from its ability to recover its original shape upon heating to a certain temperature. NiTi falls …

Laser powder bed fusion of defect-free NiTi shape memory alloy parts with superior tensile superelasticity

L Xue, KC Atli, C Zhang, N Hite, A Srivastava, AC Leff… - Acta Materialia, 2022 - Elsevier
Laser powder bed fusion is a promising additive manufacturing technique for the fabrication
of NiTi shape memory alloy parts with complex geometries that are otherwise difficult to …

Controlling martensitic transformation characteristics in defect-free NiTi shape memory alloys fabricated using laser powder bed fusion and a process optimization …

L Xue, KC Atli, S Picak, C Zhang, B Zhang, A Elwany… - Acta Materialia, 2021 - Elsevier
Abstract Laser Powder Bed Fusion (L-PBF) was utilized to fabricate fully dense, near-
equiatomic (Ni 50.1 Ti 49.9) and Ni-rich NiTi (Ni 50.8 Ti 49.2) shape memory alloy (SMA) …

The role of computer aided design/computer assisted manufacturing (CAD/CAM) and 3-dimensional printing in head and neck oncologic surgery: A review and future …

SC Nyirjesy, M Heller, N von Windheim, A Gingras… - Oral oncology, 2022 - Elsevier
Microvascular free flap reconstruction has remained the standard of care in reconstruction of
large tissue defects following ablative head and neck oncologic surgery, especially for bony …

The role of stiffness-matching in avoiding stress shielding-induced bone loss and stress concentration-induced skeletal reconstruction device failure

A Chmielewska, D Dean - Acta Biomaterialia, 2023 - Elsevier
It is well documented that overly stiff skeletal replacement and fixation devices may fail and
require revision surgery. Recent attempts to better support healing and sustain healed bone …

On the crystallographic texture and torsional behavior of NiTi shape memory alloy processed by laser powder bed fusion: Effect of build orientation

K Safaei, M Nematollahi, P Bayati, F Kordizadeh… - Additive …, 2022 - Elsevier
There is a growing industrial and academic interest in additive manufacturing (AM)
techniques such as laser powder bed fusion (LPBF) both for producing parts with complex …

Building orientation-structure-property in laser powder bed fusion of NiTi shape memory alloy

M Nematollahi, SE Saghaian, K Safaei, P Bayati… - Journal of Alloys and …, 2021 - Elsevier
This study is the first study on the compressive and tensile stress-strain revealing the
deformation anisotropy among laser powder bed fusion NiTi parts fabricated with the same …

Toward low and high cycle fatigue behavior of SLM-fabricated NiTi: Considering the effect of build orientation and employing a self-heating approach

P Bayati, A Jahadakbar, M Barati, M Nematollahi… - International Journal of …, 2020 - Elsevier
Build orientation is one of the important parameters in the selective laser melting (SLM)
process that could alter the mechanical and fatigue properties of the fabricated parts. In the …

Torsional behavior and microstructure characterization of additively manufactured NiTi shape memory alloy tubes

K Safaei, M Nematollahi, P Bayati, H Dabbaghi… - Engineering …, 2021 - Elsevier
The large reversible strain upon heating (shape memory effect) or unloading
(superelasticity), high power-to-weight ratio, good functional stability, compact size, and …