Results 171 to 180 of about 347,684 (229)
Evaluation of the cyclic fatigue resistance of four specialist nickel-titanium files for primary teeth under simulated body temperature. [PDF]
Sci RepSun Y +7 more
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Corrosion, Fatigue and Corrosion Protection of Metals and Their Alloys in Various Environments. [PDF]
Materials (Basel)Branzoi F.
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Changes in the Mechanical Properties of Nickel-Titanium Orthodontic Archwires After Clinical Use with Conventional and Self-Ligating Brackets. [PDF]
Dent J (Basel)Ruiz G +7 more
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Advanced Engineering Materials, 2004 The purpose of this study is to build a fundamental understanding of the relationship between the structure and properties of cast nickel‐titanium (NiTi). The structure of the cast material will be analyzed at various scales and will be related to the properties of the cast material such as transformation temperatures, stress‐strain behavior, and ...
Alicia M. Ortega +4 more
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Surface and Interface Analysis, 1990
Abstract In this study, the oxidation of the surface of a 50/50 (at.%) NiTi alloy was studied by XPS, AES and SEM. Samples of the NiTi alloy were oxidized at 23°C and high temperatures at an oxygen pressure of 10 −4 Torr and in atmosphere. At 10 −4
C.‐M. Chan, S. Trigwell, T. Duerig
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Abstract In this study, the oxidation of the surface of a 50/50 (at.%) NiTi alloy was studied by XPS, AES and SEM. Samples of the NiTi alloy were oxidized at 23°C and high temperatures at an oxygen pressure of 10 −4 Torr and in atmosphere. At 10 −4
C.‐M. Chan, S. Trigwell, T. Duerig
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Metallurgical and Materials Transactions A, 2003
This work focuses on the stress-induced transformation in solutionized and overaged single-crystal NiTi alloys. The potential role of detwinning on the recoverable strains was investigated both theoretically and also with temperature-cycling experiments. The detwinning is the growth of one variant within a martensite in expense of the other.
Huseyin Sehitoglu +7 more
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This work focuses on the stress-induced transformation in solutionized and overaged single-crystal NiTi alloys. The potential role of detwinning on the recoverable strains was investigated both theoretically and also with temperature-cycling experiments. The detwinning is the growth of one variant within a martensite in expense of the other.
Huseyin Sehitoglu +7 more
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Journal de Physique IV (Proceedings), 2004
Large changes in hysteresis are reported as a function of applied stress under thermal cycling experiments in NiTi single crystals. In the low Ni alloy the thermal hysteresis expanded with increasing stress while in the high Ni alloy the thermal hysteresis contracted with increasing stress.
H. Sehitoglu +3 more
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Large changes in hysteresis are reported as a function of applied stress under thermal cycling experiments in NiTi single crystals. In the low Ni alloy the thermal hysteresis expanded with increasing stress while in the high Ni alloy the thermal hysteresis contracted with increasing stress.
H. Sehitoglu +3 more
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Biocompatibility of NiTi alloys in the cell behaviour
BioMetals, 2017Metallic biomaterial alloys composed of nickel and titanium have unique thermal shape memory, superelastic, and high damping properties, which are widely used in the medicine. The major parameter evaluated in the studies regarding the behaviour of the material in the contact with organism or cells is biocompatibility.
Jana, Sevcikova +1 more
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Innovative materials: the NiTi alloys in orthodontics
Bio-Medical Materials and Engineering, 1996Since ten years the NiTi alloys have gained an ever increasing place in orthodontic practice: that is due to their peculiar mechanical properties ascribed to a martensitic thermoelastic transformation which can be thermally or, in a proper temperature range, stress-induced.
G, Airoldi, G, Riva
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The dynamic impact behavior of NiTi alloy
Materials Science and Engineering: A, 2005The contact force during impact of a NiTi alloy was studied in this paper. The contact force and contact time during impact between a spherical impactor and the specimen at different impact velocity and temperature were measured in real time. The maximum contact force and contact time of the NiTi alloy in the martensite state increased and decreased ...
Ren Bo Xu, Li Shan Cui, Yan Jun Zheng
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