Achieving superelasticity in additively manufactured NiTi in compression without post-process heat treatment

N Shayesteh Moghaddam, S Saedi, A Amerinatanzi… - Scientific reports, 2019 - nature.com
Shape memory alloys (SMAs), such as Nitinol (ie, NiTi), are of great importance in
biomedical and engineering applications due to their unique superelasticity and shape …

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 …

Anisotropic microstructure and superelasticity of additive manufactured NiTi alloy bulk builds using laser directed energy deposition

BA Bimber, RF Hamilton, J Keist, TA Palmer - Materials Science and …, 2016 - Elsevier
The microstructure and superelasticity in additive manufactured NiTi shape memory alloys
(SMAs) were investigated. Using elementally blended Ni and Ti powder feedstock, Ni-rich …

Improvement of tensile superelasticity by aging treatment of NiTi shape memory alloys fabricated by electron beam wire-feed additive manufacturing

Z Pu, D Du, D Zhang, Z Li, S Xue, R Xi, X Wang… - Journal of Materials …, 2023 - Elsevier
For the first time, this work comprehensively studied the effectiveness of precipitation
hardening achieved by aging treatment in improving the tensile superelasticity of NiTi alloys …

Texture, aging, and superelasticity of selective laser melting fabricated Ni-rich NiTi alloys

S Saedi, AS Turabi, MT Andani, NS Moghaddam… - Materials Science and …, 2017 - Elsevier
This work studies the impact of selective laser melting (SLM) fabrication on the
microstructure and texture of Ni-rich NiTi alloy. SLM NiTi samples were fabricated with a …

Superelasticity in a new bioimplant material: Ni-rich 55NiTi alloy

RR Adharapurapu, KS Vecchio - Experimental mechanics, 2007 - Springer
With the drive towards minimally invasive procedures, the medical industry is looking
towards 'avant-garde'materials, with 50NiTi currently being the prime choice for many critical …

A short review on the microstructure, transformation behavior and functional properties of NiTi shape memory alloys fabricated by selective laser melting

X Wang, S Kustov, J Van Humbeeck - Materials, 2018 - mdpi.com
Due to unique functional and mechanical properties, NiTi shape memory alloys are one of
the most promising metallic functional materials. However, the poor workability limits the …

Effect of annealing on the transformation behavior and superelasticity of NiTi shape memory alloy

X Huang, Y Liu - Scripta Materialia, 2001 - Elsevier
Annealing temperature is found to significantly affect the superelasticity of nickel titanium
(NiTi) shape memory alloy. Especially, the plateau strain of the forward stress-induced …

Optimization of thermal treatment parameters to alter austenitic phase transition temperature of NiTi alloy for medical implant

KWK Yeung, KMC Cheung, WW Lu… - Materials Science and …, 2004 - Elsevier
Super-elasticity (SE) of nickel titanium alloy is usually achieved by thermal or thermo-
mechanical treatment. This SE property depends on reverse martensitic transformation; …

On the properties of Ni-rich NiTi shape memory parts produced by selective laser melting

C Haberland, H Meier, J Frenzel - Smart Materials …, 2012 - asmedigitalcollection.asme.org
Processing of Nickel-Titanium (NiTi) shape memory alloys (SMAs) is challenging because
smallest compositional variances and all types of microstructural features strongly affect the …