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New thermomechanically treated NiTi alloys - a review

In the past 10 years, several proprietary processing procedures for nickel titanium (NiTi) alloy were developed to improve the mechanical properties of NiTi endodontic instruments. Beside specific thermal and mechanical treatments, manufacturers introduced several machining procedures (e.g. twisting …

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ATI NiTi Alloys

2 daysbefore · Nickel-Titanium Shape Memory & Superelastic Alloys. NiTi is one of several alloy systems that can “remember” a preset form, exhibiting shape memory. Also has superelasticity.

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A Study of ZrN/Zr Coatings Deposited on NiTi Alloy …

2009-11-11 · NiTi alloy. Index Terms—Coating, corrosion resistance, NiTi alloy, ZrN. I. INTRODUCTION U NIQUE shape-memory effect, superelasticity, and excel-lent biocompatibility are displayed by NiTi. However, it contains a large amount of Ni, and its use in subjects with high Ni sensitivity and long-term stability is questionable, though

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In Vitro Corrosion Studies of Surface Modified NiTi …

Electropolishing was conducted on NiTi alloy of composition 49.1 Ti-50.9 Ni at.% under potentiostatic regime at ambient temperature using perchloric acid based electrolyte for 30 sec followed by passivation treatment in an inorganic electrolyte. The corrosion resistance and biocompatibility of the electropolished and passivated alloys were evaluated and compared with mechanically polished alloy.

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Effect of Annealing Treatment on the Wear Properties …

In the present study, NiTi alloy coatings were deposited onto AISI 316L stainless steel substrates using the Closed Field Unbalanced Magnetron Sputtering (CFUBMS) system. The as-deposited NiTi alloy coating was Ni rich NiTi alloy with a composition of 44.1 at. % of Ti and 55.9 at. % of Ni and demonstrated an amorphous structure. The post-annealing treatment of the as-deposited Ni rich NiTi ...

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NiTi Alloy | Scientific.Net

Abstract: NiTi alloy is usually prepared by casting and forming. As an innovative process, reactive sintering powder metallurgy is tested worldwide, aiming to prepare pure NiTi alloy easily from nickel and titanium powders. This process enables to prepare both porous and low-porosity alloy, depnding on the process conditions.