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بررسی تاثیر حضور ذرات اکسید تیتانیوم در جلوگیری از رشد دانه‌های NiTi در فرآیند تف‌جوشی [PDF]

open access: yesنشریه مهندسی متالورژی و مواد, 2022
یکی از مشکلات تف­جوشی مواد نانو اندازه، رشد دانه در حین این فرایند است. از آنجایی که کارایی­های منحصر به‌فرد مواد نانو تا زمانی که در محدوده اندازه زیر 100 نانومتر باشند، وجود دارد، به­منظور جلوگیری از این پدیده و کاهش سرعت رشد دانه­ها راهکارهای مختلفی ...
هادی نصیری   +1 more
doaj   +1 more source

Corrosion Behavior of Amorphous-Nanocrystalline Ni50Ti50 Shape Memory Alloy [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
In the present study, the corrosion behaviors of amorphous-nanocrystalline Ni50Ti50 shape memory alloy with different crystallite sizes were investigated. The Ni50Ti50 homogenized specimens were hot rolled and annealed at 950°C.
H. Aghabeygzadeh   +2 more
doaj   +1 more source

Comparison of Microstructure, Ageing Effect and Shape Memory Properties of Additively Manufactured NiTi Alloy using LENS and EBAM Methods [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Samples prepared using various additive manufacturing methods were compared in terms of structure, texture, transformation temperature and superelastic properties.
J. Dutkiewicz   +5 more
doaj   +1 more source

Effect of Fe addition on the microstructure, transformation behaviour and superelasticity of NiTi alloys fabricated by laser powder bed fusion

open access: yesVirtual and Physical Prototyping, 2023
NiTi-Fe ternary shape memory alloys were produced by laser powder bed fusion (L-PBF) using the pre-alloyed NiTi and elemental Fe powders. A large process window exists to fabricate dense NiTiFe0.3 and NiTiFe0.5 alloys, while severe cracks occur in the ...
Rui Xi   +8 more
doaj   +1 more source

Magical NiTi expander [PDF]

open access: yesBMJ Case Reports, 2013
A 24-year-old male patient was referred to our department for expansion of the constricted maxillary arch as a presurgical procedure for the correction of congenital facial disfigurement. On examination, the patient had a convex profile, increased interlabial gap, tongue thrust, limited mouth opening, posterior crossbite, asymmetric ‘V’-shaped ...
Chandrika Girish, Katti   +3 more
openaire   +2 more sources

Characterization of pre-alloyed NiTi powders produced by electrode induction-melting inert gas atomization for additive manufacturing [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2022
In this research, the characteristics of nickel-titanium (NiTi) powders produced by electrode induction melting inert gas atomization (EIGA) technique for additive manufacturing (AM) technology are investigated using various powder characterization ...
Wang J.-W.   +6 more
doaj   +1 more source

Ajaran Kepemimpinan Niti Sastra dalam Seva Niti

open access: yesSphatika: Jurnal Teologi, 2020
<p>Nitisastra is the teachings of leaders, which also means knowledge that aims to build a state both in terms of governance, governance and community governance. In connection with the development of the state, government and society based on Nitisastra, the teachings of Hinduism can provide moral values from the form of development.
Made Nugi Nugraha   +1 more
openaire   +2 more sources

Modified Bohm’s theory for abstruse measurements: application to layer depth profiling using auger spectroscopy [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
Modified Bohm’s formalism was applied to solve the problem of abstruse layer depth profiles measured by the Auger electron spectroscopy technique in real physical systems.
E. Rówiński, M. Pietruszka
doaj   +1 more source

Laser Annealing on the Surface Treatment of Thin Super Elastic NiTi Wire [PDF]

open access: yes, 2018
Here the aim of this research is annealing the surface of NiTi wire for shape memory alloy, super-elastic wire by solid state laser beam. The laser surface treatment was carried out on the NiTi wire locally with fast, selective, surface heat treatment ...
Brajer J.   +5 more
core   +1 more source

Preparation and Characterization of NiTi/PVA Nanofibers by Electrospinning [PDF]

open access: yesEngineering and Technology Journal, 2021
NiTi alloys are widely used in biomedical applications for their unique properties particularly the shape memory effect, superelasticity, and biocompatibility.
Akram Jabur, Randa Al-Tuhafi
doaj   +1 more source

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