Nitinol melting, manufacture and fabrication

Hodgson, Darel E.; Russell, Scott M.

doi:10.3109/13645700009063051

Cited by 31 publications

(9 citation statements)

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“…The first step in optimising the thermomechanical treatments of wire and tubing products is to draw the material through a series of dies, to achieve 30-50% reduction in cross-sectional area [8]. Past methods have employed a long-term batch annealing process but, to attain a more uniform product, continuous strand strain annealing is the most effective method.…”

Section: Processingmentioning

confidence: 99%

Optimisation of processing and properties of medical grade Nitinol wire

Pelton¹,

DiCello²,

Miyazaki

2000

Minimally Invasive Therapy & Allied Technologies

244

149

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The purpose of this paper is to review the current processing and resultant properties of standard Nitinol wire for guide-wire applications. Optimised Ti-50.8at%Ni wire was manufactured according to industry standards by precise control of the composition, cold work and continuous strain-age annealing. Mechanical properties of this wire are reported from -100°C to 200°C to demonstrate the effects of test temperature. Within the 'superelastic window' the plateau stresses are linearly related to test temperature. Additional ageing treatments can be used as a tool to fine-tune transformation temperatures and mechanical properties. A review of the fatigue properties of thermomechanically-treated Nitinol wire shows that they are affected by test temperature, stress and strain.

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Section: Processingmentioning

confidence: 99%

Optimisation of processing and properties of medical grade Nitinol wire

Pelton¹,

DiCello²,

Miyazaki

2000

Minimally Invasive Therapy & Allied Technologies

244

149

View full text Add to dashboard Cite

show abstract

“…In order to further reconcile this contradiction, Boeing developed a rotor blade structure based on SMA actuators, which uses SMA actuators to expand the structure to reduce drag when the rotor blades need to be quiet and to retract the structure when they are not needed to reduce noise [ 75 ]. Turbofan engine noise is a common problem for large jets, and zigzag or V-shaped jet port devices [ 76 ] have been shown to significantly reduce vehicle noise, but the problem is that such structures can impair the aerodynamics of the engine. The VGC project has achieved great success in this direction through SMA actuators to transform the local structure of the aircraft between the jagged noise-reducing shape and the shape during cruising while taking into account the advantages of both [ 77 ].…”

Section: Shape Memory Materialsmentioning

confidence: 99%

Development and Prospect of Smart Materials and Structures for Aerospace Sensing Systems and Applications

Wang

Xiang

et al. 2023

Sensors

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The rapid development of the aviation industry has put forward higher and higher requirements for material properties, and the research on smart material structure has also received widespread attention. Smart materials (e.g., piezoelectric materials, shape memory materials, and giant magnetostrictive materials) have unique physical properties and excellent integration properties, and they perform well as sensors or actuators in the aviation industry, providing a solid material foundation for various intelligent applications in the aviation industry. As a popular smart material, piezoelectric materials have a large number of application research in structural health monitoring, energy harvest, vibration and noise control, damage control, and other fields. As a unique material with deformation ability, shape memory materials have their own outstanding performance in the field of shape control, low-shock release, vibration control, and impact absorption. At the same time, as a material to assist other structures, it also has important applications in the fields of sealing connection and structural self-healing. Giant magnetostrictive material is a representative advanced material, which has unique application advantages in guided wave monitoring, vibration control, energy harvest, and other directions. In addition, giant magnetostrictive materials themselves have high-resolution output, and there are many studies in the direction of high-precision actuators. Some smart materials are summarized and discussed in the above application directions, aiming at providing a reference for the initial development of follow-up related research.

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“…Laser machining, electro-discharge machining (EDM), and photochemical etching processes are used to fabricate various components from Nitinol. [13,14] Stents, baskets and filters are some of the examples. Laser machining has become the standard process for manufacturing Nitinol tubular stents.…”

Section: Mechanical Testingmentioning

confidence: 99%

Intermetallic Microstructural and Mechanical Response of Niti (Nitinol) Shape Memory Alloy With Laser Welding to Various Materials

Panwar¹,

Shangari²,

Lu³

et al. 2022

IJEAST

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In this ever-changing and evolving world, the demand for material goods is ever increasing. Certain metals and materials have become highly sought-after. The demand for new alloys for various commercial and medical applications increases every day [1]. To address the new age industry demands, focusing on longevity, versatility, extreme load case scenarios, and commercial viability, scientists have to develop new manufacturing techniques and methods. This will enable them to create and mass-produce various new metal alloys that can meet the demands for the designs of new products and replace traditional elements, such as carbon steel or aluminum, in existing products with an ever-increasing workload. This paper will focus on the discovery, development, evolution, manufacturing, uses, and commercial viability of Nitinol (NiTi) and what impact it has had due to its unique properties across many industries. Super-elastic Nitinol has become a familiar and wellknown engineering material in the medical industry over the last couple of decades. While the greater flexibility of the alloy drives many of the applications, there are many lesser-known advantages of Nitinol in medical devices. [1, 2, 3]

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Nitinol melting, manufacture and fabrication

Cited by 31 publications

References 0 publications

Optimisation of processing and properties of medical grade Nitinol wire

Optimisation of processing and properties of medical grade Nitinol wire

Development and Prospect of Smart Materials and Structures for Aerospace Sensing Systems and Applications

Intermetallic Microstructural and Mechanical Response of Niti (Nitinol) Shape Memory Alloy With Laser Welding to Various Materials

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