Extended Cyclic Deformation Recovery of the Indentation‐Induced Two‐Way Shape‐Memory Effect in Nickel–Titanium

2019 ◽  
Vol 21 (4) ◽  
pp. 1801020 ◽  
Author(s):  
Christopher M. Laursen ◽  
Mitchell P. Anderson ◽  
Carl P. Frick
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Cyclic Deformation ◽  
Nickel Titanium ◽  
Deformation Recovery

scholarly journals Cyclic Deformation and Degradation in Shape Memory Effect of Ti-Ni Wire

1988 ◽  
Vol 52 (2) ◽  
pp. 139-143 ◽  
Author(s):  
Yasubumi Furuya ◽  
Heihachi Shimada ◽  
Minoru Matsumoto ◽  
Toshio Honma
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Cyclic Deformation

Orthopaedic Aspects and Peculiarities of Operative Treatment for Funnel Breast in Children and Adolescents

2011 ◽  
Vol 18 (3) ◽  
pp. 3-9
Author(s):  
Oleg Alekseevich Malakhov ◽  
K V Zherdev ◽  
O B Chelpachenko ◽  
O A Malakhov ◽  
K V Zherdev ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Operative Treatment ◽  
Age Groups ◽  
Nickel Titanium ◽  
Spine Deformity ◽  
Funnel Chest ◽  
Cosmetic Effect ◽  
Full Correction

Results of operative treatment using radical thoracoplasty in 31 patients with funnel breast were analyzed. Mean age of patients was 14.98±4.36 years. All patients had concomitant spine deformity. For purpose of cosmetic effect improvement the mini-invasive submammary accesses were used. Fixatives of sternocostal complex from nickel-titanium with shape-memory were worked out. The shape memory effect was achieved by cooling of the implant that resulted in implant plasticity. After being inserted the implant restored its original shape. That technique allowed achieving full correction of the deformity and positive cosmetic effect in all patients. No complications associated with plate migration were revealed. Radical thoracoplasty with thoracocostal complex stabilization by plate with shape-memory effect is pathogenetically justified and allows correcting the funnel chest of any degree and form and is indicated to patients of any age groups.

Behavior of the nickel-titanium alloys with the shape memory effect under conditions of shock wave loading

2011 ◽  
Vol 53 (4) ◽  
pp. 824-829 ◽  
Author(s):  
S. V. Razorenov ◽  
G. V. Garkushin ◽  
G. I. Kanel’ ◽  
O. A. Kashin ◽  
I. V. Ratochka
Keyword(s):  
Shock Wave ◽  
Shape Memory ◽  
Titanium Alloys ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Nickel Titanium ◽  
Shock Wave Loading ◽  
Wave Loading ◽  
Nickel Titanium Alloys

SHAPE MEMORY EFFECT AND CYCLIC DEFORMATION BEHAVIOR OF Ti–Nb–N ALLOYS

2009 ◽  
Vol 02 (02) ◽  
pp. 79-82 ◽  
Author(s):  
MASAKI TAHARA ◽  
HEE YOUNG KIM ◽  
HIDEKI HOSODA ◽  
SHUICHI MIYAZAKI
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Cyclic Deformation ◽  
Tensile Tests ◽  
Ternary Alloys ◽  
Loading And Unloading ◽  
Perfect Recovery ◽  
The Stability ◽  
Stress Hysteresis

The effect of 1 at.% N addition on the shape memory effect of Ti – Nb alloys was investigated. The shape memory effect and superelasticity were observed in Ti –(18–20) Nb –1.0 N and Ti –(21–25) Nb –1.0 N alloys, respectively. The Ti –23 Nb –1.0 N alloy exhibits the best superelastic properties with almost perfect recovery and small stress hysteresis among N added ternary alloys. The effect of cyclic deformation on the stability of superelasticity was investigated for the Ti –23 Nb –1.0 N alloy by loading and unloading cyclic tensile tests up to 500 cycles with a constant maximum applied strain of 2.5%. It was confirmed that the stability of superelasticity was improved by the addition of N due to the increase of the critical stress for slip.

scholarly journals Shape memory effect in nanoindentation of nickel–titanium thin films

2003 ◽  
Vol 83 (2) ◽  
pp. 257-259 ◽  
Author(s):  
G. A. Shaw ◽  
D. S. Stone ◽  
A. D. Johnson ◽  
A. B. Ellis ◽  
W. C. Crone
Keyword(s):  
Thin Films ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Nickel Titanium ◽  
Titanium Thin Films

The shape memory effect and superelasticity in nickel-titanium single crystals aged under applied stress

2003 ◽  
Vol 112 ◽  
pp. 799-802 ◽  
Author(s):  
Yu. I. Chumlyakov ◽  
E. Yu. Panchenko ◽  
I. V. Kireeva ◽  
D. A. Shaporov ◽  
V. B. Aksenov ◽  
...  
Keyword(s):  
Shape Memory ◽  
Single Crystals ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Applied Stress ◽  
Nickel Titanium

Target Shape Optimization of 3D Compliant Mechanism With Superelastic Joints and Shape Memory Actuation

2019 ◽  
Author(s):  
Jovana Jovanova ◽  
Angela Nastevska ◽  
Mary Frecker
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Compliant Mechanisms ◽  
Compliant Mechanism ◽  
Shape Change ◽  
Nickel Titanium ◽  
Different Temperatures ◽  
Superelastic Behavior ◽  
Over Time

Abstract The shape memory effect and the superelasticity of nickel titanium (NiTi) alloys are beneficial for design of compliant mechanisms. The superelastic behavior of NiTi can be tailored for optimal flexure design in the compliant mechanism, allowing large deformation and shape change. The shape memory effect can also be utilized to actuate the compliant mechanism flexures enabling programing of the material to take on variety of shapes at different temperatures over time. The compliant mechanism analyzed in this work is inspired from 3D multi leg spider-like locomotion, enabling movement in all directions by triggering different target shapes in time. The control of the material spatial distribution facilitated by additive manufacturing will enable tailored superelastic and shape memory behavior in the flexures of the multifunctional 3D compliant mechanism. Design optimization and analyses as well as overall shape change are explored in this work. Superelastic joints are introduced as flexures to enable segment flexibility. The temperature change is used for actuation taking in consideration different initial strain conditions.

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