Testing and Evaluation of NiTiMe(Me=Co,Cu,Hf,Nb,Zr) Alloys Resistance to Pitting Corrosion

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F11%3A86081463" target="_blank" >RIV/61989100:27360/11:86081463 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Testing and Evaluation of NiTiMe(Me=Co,Cu,Hf,Nb,Zr) Alloys Resistance to Pitting Corrosion

Original language description

NiTi (Nitinol) based alloys are used as functional materials and/or metallic biomaterials. Their transformation characteristics and many properties can be modified by addition of some elements (Co, Cu, Hf, Nb, Zr), which probably change corrosion resistance and biocompatibility. For comparative corrosion tests the following alloys were used: Ni40-Ti50-Cu10, Ni50-Ti35-Cu15, Ni46-Ti50-Co4, Ni50-Ti42-Hf8, Ni50-Ti25-Nb15-Zr10, Ni50-Ti42-Zr8 and reference one Ni50-Ti50 (NiTi), which were prepared at the Department of Non-ferrous Metals, Refining and Recycling in VSB-TU Ostrava. Resistance to pitting was compared by depassivation and repassivation potential values, measured by standard potentiodynamic polarization method with artificial saliva. The positiveinfluence of Cu addition (10-15%) was confirmed. Negligible change of pitting potentials values was recorded on NiTi with Co. Increased resistance to pitting was found out for NiTi alloys with Hf, Nb and Zr additions, and the best resista

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JK - Corrosion and material surfaces

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2011

Confidentiality

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

Name of the periodical

Hutnické listy

ISSN

0018-8069

e-ISSN

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Volume of the periodical

64

Issue of the periodical within the volume

6

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

5

Pages from-to

85-89

UT code for WoS article

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EID of the result in the Scopus database

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