Optimization possibilities of properties of NiTi alloys used as traumatology implants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F21%3A10248577" target="_blank" >RIV/61989100:27360/21:10248577 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/metal/2021/4271-optimization-possibilities-of-properties-of-niti-alloys-used-as-traumatology-implants" target="_blank" >https://www.confer.cz/metal/2021/4271-optimization-possibilities-of-properties-of-niti-alloys-used-as-traumatology-implants</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2021.4271" target="_blank" >10.37904/metal.2021.4271</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization possibilities of properties of NiTi alloys used as traumatology implants

Popis výsledku v původním jazyce

Shape memory alloy represents metallic material that can return to its original forms, shapes, or sizes when subjected to a process of memorization between two transformation phases. The basic application of these materials is always simple, i.e. where the material can be easily deformed by an external force and will recover its original forms when heated at a certain temperature. NiTi alloy is mainly characterized by its special properties, namely the shape memory effect and superelastic behavior, as well as the excellent corrosion resistance, high strength, low modulus of elasticity and biocompatibility. Due to its superelasticity, NiTi resembles to some human rigid tissues, including bones and tendons that enables its using in implants or tools for many medical cases in orthopedics, neurology, cardiology, interventional radiology, endodontics, etc. In this work, the effect of thermal treatment on physical-metallurgical properties of NiTi alloy was studied. Flat samples of NiTi alloy with a composition of 50.6 at% Ni and 49.4 at% Ti were solution treated at 850 oC and subsequently aged at 450 oC. The microstructures in as-received, solution treated or solution treated and aged stages were examined by means of optical or scanning electron microscopies. The analysis of the heat treatment effect on the microstructure and transformation temperatures was completed by Vickers microhardness measurement and by differential scanning calorimetry.

Název v anglickém jazyce

Optimization possibilities of properties of NiTi alloys used as traumatology implants

Popis výsledku anglicky

Shape memory alloy represents metallic material that can return to its original forms, shapes, or sizes when subjected to a process of memorization between two transformation phases. The basic application of these materials is always simple, i.e. where the material can be easily deformed by an external force and will recover its original forms when heated at a certain temperature. NiTi alloy is mainly characterized by its special properties, namely the shape memory effect and superelastic behavior, as well as the excellent corrosion resistance, high strength, low modulus of elasticity and biocompatibility. Due to its superelasticity, NiTi resembles to some human rigid tissues, including bones and tendons that enables its using in implants or tools for many medical cases in orthopedics, neurology, cardiology, interventional radiology, endodontics, etc. In this work, the effect of thermal treatment on physical-metallurgical properties of NiTi alloy was studied. Flat samples of NiTi alloy with a composition of 50.6 at% Ni and 49.4 at% Ti were solution treated at 850 oC and subsequently aged at 450 oC. The microstructures in as-received, solution treated or solution treated and aged stages were examined by means of optical or scanning electron microscopies. The analysis of the heat treatment effect on the microstructure and transformation temperatures was completed by Vickers microhardness measurement and by differential scanning calorimetry.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/FV40306" target="_blank" >FV40306: Vývoj nových implantátů pro regulaci růstu dolní končetiny ve sterilním provedení</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2021 : conference proceedings : 30th Anniversary International Conference on Metallurgy and Materials : May 26 - 28, 2021, Brno, Czech Republic, EU

ISBN

978-80-87294-99-4

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1113-1118

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

26. 5. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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