Comparison of resistance of NiTi(Cu,Fe) alloys to pitting in artificial saliva

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F08%3A00019621" target="_blank" >RIV/61989100:27360/08:00019621 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of resistance of NiTi(Cu,Fe) alloys to pitting in artificial saliva

Popis výsledku v původním jazyce

NiTi (Nitinol) alloys are used as metallic biomaterials with shape memory and superelasticity effects. Their properties and characteristics can be modified by small addition of Cu, Fe or other elements that can change corrosion resistance and biocompatibility. In this contribution the NiTi alloys with addition of Cu and Fe, pure NiTi, Ni and Ti were tested and compared with respect to pitting corrosion in artificial saliva. By means of standard potentiodynamic polarization method the positive influenceof Cu addition (1-10%) on pitting resistance of NiTi alloy in as-received state and after heat treatment (850°C/0,5h/water) was proved. The smaller increase of pitting potentials values was recorded on NiTi with Fe (1-3%) according to final treatment. The values of repassivation and depassivation potentials of NiTi(Cu,Fe) alloys were smaller in comparison with steels (316) for implants.

Název v anglickém jazyce

Comparison of resistance of NiTi(Cu,Fe) alloys to pitting in artificial saliva

Popis výsledku anglicky

NiTi (Nitinol) alloys are used as metallic biomaterials with shape memory and superelasticity effects. Their properties and characteristics can be modified by small addition of Cu, Fe or other elements that can change corrosion resistance and biocompatibility. In this contribution the NiTi alloys with addition of Cu and Fe, pure NiTi, Ni and Ti were tested and compared with respect to pitting corrosion in artificial saliva. By means of standard potentiodynamic polarization method the positive influenceof Cu addition (1-10%) on pitting resistance of NiTi alloy in as-received state and after heat treatment (850°C/0,5h/water) was proved. The smaller increase of pitting potentials values was recorded on NiTi with Fe (1-3%) according to final treatment. The values of repassivation and depassivation potentials of NiTi(Cu,Fe) alloys were smaller in comparison with steels (316) for implants.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Hutnické listy

ISSN

0018-8069

e-ISSN

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Svazek periodika

64

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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