Effect of an isothermal action on the functional properties and the shape memory effect parameters of a TiNi(Mo, V) alloy

2017 ◽  
Vol 2017 (4) ◽  
pp. 267-270
Author(s):  
E. S. Marchenko ◽  
G. A. Baigonakova ◽  
V. E. Gunther ◽  
T. L. Chekalin
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Functional Properties

Creation of Substructure and Nanostructure in Thermomechanical Treatment and Control of Functional Properties of Ti - Ni Alloys with Shape Memory Effect

2005 ◽  
Vol 47 (5-6) ◽  
pp. 182-187 ◽  
Author(s):  
S. D. Prokoshkin ◽  
V. Brailovskii ◽  
I. Yu. Khmelevskaya ◽  
S. V. Dobatkin ◽  
K. E. Inaekyan ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Thermomechanical Treatment ◽  
Memory Effect ◽  
Functional Properties ◽  
Ni Alloys ◽  
And Control

Use of 4D-printing and shape memory alloys to fabricate customized metal jewels with functional properties

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Adelaide Nespoli ◽  
Nicola Bennato ◽  
Enrico Bassani ◽  
Francesca Passaretti
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Functional Properties ◽  
Environmental Changes ◽  
Sample Surface ◽  
4D Printing ◽  
Additive Process ◽  
Content Type ◽  
The One

Purpose This paper aims to examine customized NiTi jewels with functional properties fabricated through four-dimensional (4D)-printing. Design/methodology/approach Two opened rings are fabricated through selective laser melting starting from 55.2Ni-Ti (wt.%) micrometric powder. After the additive process the two rings present the one-way shape memory effect (OWSME). A specific training is accomplished on one of the two printed rings to promote the two-way shape memory effect (TWSME). Both the samples, namely, the rings, respectively, presenting the OWSME and TWSME property, follow a series of post-processing routes to improve the surface finish. Furthermore, a thermal treatment at high temperature is used to create a thin colored oxide layer on the sample surface. Findings Results show that the change of shape owing to the OWSME and TWSME properties allows the customized 4D-printed rings to be adaptable to environmental changes such as load and temperature variations. This adaptability improves comfort and fit of the jewels. Originality/value To the best of the authors’ knowledge, in this work, first cases of additively manufactured NiTi jewels are reported to propose innovative solutions in the design and processing industry of jewels.

scholarly journals Materials with Shape Memory Effect for Applications in Maritime

2019 ◽  
Vol 218 (3) ◽  
pp. 25-41
Author(s):  
Špiro Ivošević ◽  
Rebeka Rudolf
Keyword(s):  
Sustainable Development ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Functional Properties ◽  
Maritime Industry ◽  
New Materials ◽  
Energy Control ◽  
Engineering Aspect ◽  
New Applications

Abstract In this review it is presented the insight of challenges faced by all branches of industry in the new age, and especially the maritime industry, strive for sustainable development, better energy control, use of materials with functional properties such as shape memory, all in the direction of increasing safety and comfort. Therefore, the development of new materials with shape memory, which is associated with the introduction of optimized production and the achievement of better functional properties. This leads to new applications in different systems and possible use on devices, which meet the rigorous requirements of the modern industry. The research into new materials with shape memory effect and their applied use in maritime is a challenge that many researchers have encountered in recent decades, and this is why in this paper we look at the basic engineering aspect of these materials and their current as well as future applications in the maritime industry. An overview of several innovations that testify shape memory effect and superelasticity in different maritime fields will be presented in this review.

Shape Memory Effect and Superelasticity in Single Crystals of High-Strength Ferromagnetic Alloys

2014 ◽  
Vol 1013 ◽  
pp. 15-22 ◽  
Author(s):  
Yuri Chumlyakov ◽  
Irina Kireeva ◽  
Elena Panchenko ◽  
Ekaterina Timofeeva ◽  
Irina Kretinina ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Martensitic Transformation ◽  
Shape Memory ◽  
Single Crystals ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Functional Properties ◽  
Volume Fraction ◽  
High Strength ◽  
Ferromagnetic Alloys

In the present study the effect of second γ'-phase particles which do not undergo martensitic transformation on the functional properties – shape memory effect and superelasticity, in ferromagnetic FeNiCoAlX (X = Ta, Nb, Ti) and NiFeGaCo single crystals are investigated. Dispersed γ'-phase particles allow to control both mechanical and functional properties due to variation of chemical composition, volume fraction and size of nanoparticles, and to obtain the nanocomposites with complex of necessary properties.

Tensile Failure of 55-Nitinol Wire

1975 ◽  
Vol 33 ◽  
pp. 46-47
Author(s):  
F. I. Grace
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Stoichiometric Composition ◽  
Tensile Failure ◽  
Initial State ◽  
Initial Shape ◽  
Nitinol Wire ◽  
Cscl Type ◽  
Shear Transformation

An interest in NiTi alloys with near stoichiometric composition (55 NiTi) has intensified since they were found to exhibit a unique mechanical shape memory effect at the Naval Ordnance Laboratory some twelve years ago (thus refered to as NITINOL alloys). Since then, the microstructural mechanisms associated with the shape memory effect have been investigated and several interesting engineering applications have appeared.The shape memory effect implies that the alloy deformed from an initial shape will spontaneously return to that initial state upon heating. This behavior is reported to be related to a diffusionless shear transformation which takes place between similar but slightly different CsCl type structures.

A new type of intrinsic two-way shape-memory effect in hooks of NiTi-wires

2003 ◽  
Vol 112 ◽  
pp. 1177-1180 ◽  
Author(s):  
A. Schuster ◽  
H. F. Voggenreiter ◽  
D. C. Dunand ◽  
G. Eggeler
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
New Type ◽  
Niti Wires
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