R-phase transformation in NiTi alloys

XB Wang, B Verlinden… - Materials Science and …, 2014 - journals.sagepub.com
In near equiatomic NiTi alloys, the thermoelastic transformation between austenite and the R-
phase shows unique properties, which make the R-phase transformation very promising for …

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 …

Texture and anisotropy in selective laser melting of NiTi alloy

S Dadbakhsh, B Vrancken, JP Kruth, J Luyten… - Materials Science and …, 2016 - Elsevier
Selective laser melting (SLM) is used to manufacture dense NiTi parts. The microstructure
and texture are assessed (before and after annealing followed by furnace cooling) and …

Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis

SW Robertson, A Mehta, AR Pelton, RO Ritchie - Acta Materialia, 2007 - Elsevier
The ultrahigh spatial resolution (∼ 1μm2) of synchrotron X-ray microdiffraction is combined
with fracture mechanics techniques to directly measure in situ three-dimensional strains …

High temperature deformation and processing map of a NiTi intermetallic alloy

M Morakabati, M Aboutalebi, S Kheirandish, AK Taheri… - Intermetallics, 2011 - Elsevier
The deformation behavior of a 49.8 Ni-50.2 Ti (at pct) alloy was investigated using the hot
compression test in the temperature range of 700° C–1100° C, and strain rate of 0.001 s− 1 …

Grain growth and precipitation in an annealed cold-rolled Ni50. 2Ti49. 8 alloy

AK Srivastava, D Schryvers, J Van Humbeeck - Intermetallics, 2007 - Elsevier
In this paper we present a transmission electron microscopic study on the effect of annealing
on the microstructure of a cold-rolled Ni50. 2Ti49. 8 ribbon. Transmission electron …

Microstructural mapping of C60 phase transformation into disordered graphite at high pressure, using X-ray diffraction microtomography

M Alvarez-Murga, P Bleuet, L Marques… - Journal of Applied …, 2011 - journals.iucr.org
An extended use of synchrotron-based X-ray diffraction microtomography (XRD-µCT) to
study simultaneously the phase distribution and microstructure in phase-transformation …

Mechanical synthesis of nanostructured titanium–nickel alloys

DD Radev - Advanced Powder Technology, 2010 - Elsevier
The methods of mechanically assisted synthesis and mechanical alloying are used to obtain
nanostructured TiNi shape-memory alloys. A stoichiometric mixture of Ti and Ni powders …

Influence of annealing temperature on microstructure and shape memory effect in austenite-martensite duplex Ni47Ti44Nb9 rolled sheets

M Sun, Q Fan, Y Wang, J Ge, S Zhang, X Shen… - Materials …, 2021 - Elsevier
The evolution of phase composition and microstructure such as grain size, dislocation and
crystallographic texture in austenite-martensite duplex Ni 47 Ti 44 Nb 9 rolled sheets during …

[PDF][PDF] On the mechanical properties and microstructure of Nitinol for biomedical stent applications

SW Robertson - 2006 - escholarship.org
When conventional engineering materials, such as stainless steel, are mechanically loaded,
they undergo typically less than 1% elastic deformation (which is completely recoverable) …