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nitinol (nickel-titanium shape memory alloy)

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Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005658
EISBN: 978-1-62708-198-6
... alloys. In fact, the biocompatibility of properly prepared Nitinol is much more akin to titanium than to nickel. These emotional concerns over Nitinol biocompatibility were not helped by early devices and test data that employed improperly prepared surfaces. If surfaces are not appropriately prepared...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001100
EISBN: 978-1-62708-162-7
... them using differential scanning calorimeter (DSC) techniques as well as other methods. The article examines the most common shape memory alloys, namely, nickel-titanium and copper-base SMAs, and provides information on their respective properties. biomedical applications copper-base shape...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006261
EISBN: 978-1-62708-169-6
..., special-purpose alloys such as nitinol shape memory alloys, low-expansion alloys, electrical-resistance alloys and soft magnetic alloys. Finally, the article focuses on heat treatment modeling for selecting the appropriate heat treatment process. aging annealing corrosion-resistant nickel alloys...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006836
EISBN: 978-1-62708-329-4
... titanium dioxide repassivation process, exposing the base metal to the selective dissolution of nickel and promoting pitting and crevice corrosion. Finally, the chemical compositions of the NiTi wires were not in accordance with ASTM specifications for wrought nickel-titanium shape memory alloys used...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005680
EISBN: 978-1-62708-198-6
..., there has been increased interest in implementing Nitinol, a type of shape memory alloy, in biomedical applications. In particular, its pseudoelastic and shape memory properties have made it appealing to implement in medical device applications. Microjoining of Nitinol has been proven to be generally...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003164
EISBN: 978-1-62708-199-3
... (Ni3Al and NiAl), iron aluminides (Fe3Al and FeAl) and titanium aluminides (alpha-2 alloys, orthorhombic alloys, and gamma alloys). alloying effects corrosion resistance crystallographic data fabrication iron aluminides mechanical properties nickel aluminides processing of aluminides...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... vessel shapes and sizes, but most consist of a laser-cut tube with a diamondlike cell structure to maximize flexibility while maintaining sufficient radial force on the vessel wall. Vascular stents have historically been manufactured from stainless steel, titanium, nitinol, and cobalt alloys, with most...
Book Chapter

By Matthew Donachie
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003168
EISBN: 978-1-62708-199-3
... the material is heated to a transition temperature, at which point the component will spontaneously return to its original shape. One class of SME alloys is represented by nickel-titanium alloys of roughly equiatomic composition. It was reasoned that nickel-titanium alloys should be reasonably...
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006885
EISBN: 978-1-62708-392-8
... bioceramic coatings/composites on implant surfaces, with particular examples related to biomedical magnesium and titanium alloys. It then provides a review of the processes involved in DED of biomedical stainless steels, Co-Cr-Mo alloys, and biomedical titanium alloys. Further, the article covers novel...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005660
EISBN: 978-1-62708-198-6
... metals and alloys are used for medical device applications, the most commonly employed are stainless steels, commercially pure titanium and titanium alloys, and cobalt-base alloys ( Table 2 ). A unique alloy that has gained acceptance in the biomedical industry is a nickel-titanium binary shape metal...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005687
EISBN: 978-1-62708-198-6
..., ASTM F562, ISO 5832-6 UNS R30035 Hips Pacemakers; heart valves; defibrillators Nickel base/nitinol Ni-21Cr-9Mo-Nb BS 3076 NA 21, ASTM B446, AMS 5666 Inconel Ni-45Ti ASTM F2004, ASTM F2005, ASTM F2063, ASTM F2082, ASTM F2516 Nickel-titanium shape memory alloy, NiTi Fixation...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003776
EISBN: 978-1-62708-177-1
... shows a production ring blank in a 14 k nickel-white alloy that failed during processing. Continuous-cast sheet was processed to 3 mm (0.12 in.) thickness and then blanked into a washer using a hydraulic press. The washer was then annealed in a belt furnace at 700 °C (1290 °F) and formed into the blank...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001102
EISBN: 978-1-62708-162-7
... and metallurgical properties, material processing and fabrication, structural applications, mechanical behavior, environmental embrittlement, alloying effects, and crystal structure of aluminides of nickel, iron, titanium, and silicides. It describes the cleavage and intergranular fracture in trialuminides...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006684
EISBN: 978-1-62708-213-6
... structure, although the intermetallic structures are hard to see. In Fig. 37 , martensite in a nitinol shape memory alloy (SMA) after etching using equal parts nitric acid, acetic acid, and hydrofluoric acid is revealed more clearly using DIC than bright field. Fig. 35 Example of comet tails after...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005674
EISBN: 978-1-62708-198-6
... speed recovery in cranioplasty or neurosurgery Shape memory (titanium-nickel) Nitinol alloys Titanium pegs to attach false eyes or ears Implants, fusion cages, correction parts, and fixturing in the spine Toe and finger implants Urethral stents Medical instrumentation such as dental...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004209
EISBN: 978-1-62708-184-9
..., and titanium and its alloys. Wrought orthodontic wires are composed of stainless steel, cobalt-chromium-nickel, nickel-titanium, and β-titanium alloys. Silver- and gold-alloy solders are used for the joining of components. High-temperature brazing alloys are used for the joining of a number of high fusing...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005654
EISBN: 978-1-62708-198-6
... 897 130 12 30 F2146 R56320 862 125 724 105 10 … (a) Also applies to F1341 Some THR femoral components and knee implants are made from cast titanium ( Ref 38 ). A shape-memory alloy, Nitinol, is used in various dental applications (braces, for example) ( Ref 34...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004208
EISBN: 978-1-62708-184-9
... femoral components and knee implants are made from cast titanium ( Ref 38 ). A shape-memory alloy, Nitinol, is used in various dental applications (braces, for example) ( Ref 34 ). This material is based on the Ni-Ti binary alloy containing 54.5 to 57.0% Ni, and the shape memory is based on formation...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006657
EISBN: 978-1-62708-213-6
... temperatures ( Ref 60 ). Metals such as titanium, niobium, and nickel; superalloys; and intermetallic compounds such as nickel aluminides and titanium aluminides are among the strong candidates for matrices. Because of their low density, good mechanical strength, and thermal stability at elevated temperatures...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4