NiTi alloy
Electric discharge machining of cryo treated NiTi alloy by cryo treated and untreated copper electrode
... study NiTi alloy is selected as workpiece material and electrolytic copper as tool ...electrode. NiTi samples were cut into size of φ20 mm x 20 mm length and tool electrode of size 3 mm x 90 mm ...
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Deoxidation of NiTi Alloy Melts Using Metallic Barium
... to NiTi alloy melts in a lime crucible at 1673 K for the first ...the NiTi alloy melts could be lowered to 350 ppm by means of deoxidation using metallic barium, and furthermore, it was found ...
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Improvement of Antibacterial Activity Resistance of NiTi Alloy by Electrophoretic Deposition
... (SEM) is a powerful magnification tool that utilizes focused beams of electrons to obtain information. The high-resolution, three-dimensional images produced by SEMs provide topographical, morphological and ...
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The use of shape memory NiTi alloy clips in small bowel anastomosis in pigs
... memory NiTi alloy clips with near-equiatom- ic chemical composition (Nudelman ...of NiTi alloy clips in veterinary medicine is not widely described in the literature, which prompted us to ...
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Effect of Cu and Heat Treatment on the Corrosion Behaviour of a NiTi Alloy in Simulated Human Fluids
... the NiTi alloys is due to the need to improve the material acceptation in the human body since it is well known that cooper possesses excellent behavior as antiseptic and antibacterial material ...a NiTi ...
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Effect of soaking time on the preparation of porous NiTi alloy during micro-forming fields activated sintering
... Recently, researchers have fabricated porous NiTi alloys with various metallurgical methods. Adnan S. Jabur et al. [5] prepared Ni-Ti shape memory alloys at 950 ◦ C for 9 h by traditional powder metallurgy, and ...
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Surface Activation of NiTi Alloy by Using Electrochemical Process for Biomimetic Deposition of Hydroxyapatite Coating (TECHNICAL NOTE)
... pre-electrodeposited specimens after soaking in SBF for various times. After soaking in SBF for a day, numerous fine granules appeared on the surface of the sample, as shown in Figure 5 (a,b). The number of the grains ...
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Design of splints based on the NiTi alloy for the correction of joint deformities in the fingers
... Finally, we proceeded to produce prototypes of the proposed splint, by means of mechanized electroerosion, from plates with 1 mm of NiTi thickness (50.8 at %Ni, 49.2 at % Ti), supplied by the company Memory ...
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Photocatalytic Activity of the Oxide Layer Formed on NiTi Surface through Thermal Oxidation Process
... oxidized NiTi as medical devices, although NiO in the topmost surface is beneficial in the view from photocatalytic ...within NiTi alloy. Furthermore, we consider that a NiTi alloy with ...
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PM Processing of Single Phase NiTi Shape Memory Alloys by VPCR Process
... The high chemical homogeneity of the sample was further demonstrated by backscattered electron micrographs [see Figs. 4(a1)–(a2)]. In backscattered mode, images are very sensitive to chemical contrast and give important ...
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In Situ Observation of Nonmetallic Inclusion Formation in NiTi Alloys
... It is well recognized that the fatigue characteristics of NiTi alloys are greatly influenced by the presence of nonmetallic inclusions. A high fatigue strength is required for the application of these alloys to ...
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Fabrication of NiTi shape memory alloy by Micro-FAST
... A NiTi shape memory alloy, known as nitinol, has been intensively studied for last five ...The NiTi alloy with large size is commonly produced by vacuum sintering, thermal explosion mode of ...
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Management of long-term and reversible hysteroscopic sterilization: a novel device with nickel-titanium shape memory alloy
... memory alloy and a waterproof membrane. The NiTi alloy is covered with two coatings to avoid toxic Ni release and to prevent stimulation of epithelial tissue growth around the ...the NiTi ...
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Production of porous Ni Ti alloy and test of its biocompatibility under in vivo conditions
... that NiTi based smart materials with shape memory are benefited in biomedical areas requires a porous structure derivation, but difficulties encoun- tered in production of porous NiTi alloy restrict ...
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XPS Study of Corrosion Behavior of Ti 18Nb 4Sn Shape Memory Alloy in a 0 05 mass% HCl Solution
... underlying alloy surface for the NiTi alloy as a function of immersion ...the alloy is also shown for ...underlying alloy surface is largely deficient in Ti atom, indicating that ...
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Enhancement of osteoblast activity on nanostructured NiTi/hydroxyapatite coatings on additive manufactured NiTi metal implants by nanosecond pulsed laser sintering
... in NiTi alloy, which could support the mechanism ...laser-sintered NiTi/HA coating, the only intermetallic alloy phase detected was NiTi, in which B2 is the primary phase with presence ...
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Effects of Grain Size Gradient on Deformation Behavior of Superelastic NiTi Plate
... Therefore how to develop SMAs to adopt advantages of both CG and NG and avoid their shortcomings has profound significance for practical application. A.S. Mahmud and B.S. Shariat [17-19] provide some experimental ideas ...
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First-Principles Calculations of Structural, Mechanical, and Electronic Properties of the B2-Phase NiTi Shape-Memory Alloy Under High Pressure
... rolled NiTi sheet by uniaxial tension and cyclic loading using in situ laboratory X-ray diffraction, and the results revealed that the increasing external applied stress induced the continuous phase transformation ...
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Fabrication of Porous NiTi Shape Memory Alloy Objects by Powder Metallurgy for Biomedical Applications
... Porous Ni-Ti shape memory alloys have recently become a central item of attention. It is usually used as hard tissue implants (such as artificial bone) because of its porous structure, good mechanical properties, high ...
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A Study of the effects of strain on NiTi shape memory alloy
... Index of Figures 3 Figure 1 Shape Memory Process Figure 2 Diagram of phases as NiTi is heated and Figure 3 Lattice Parameters of a Crystal System Figure 4 Crystal Strucure of NiTi Figure[r] ...
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