Comparative mechanical and corrosion studies on magnesium, zinc and iron alloys as biodegradable metals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43900144" target="_blank" >RIV/60461373:22310/15:43900144 - 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

Comparative mechanical and corrosion studies on magnesium, zinc and iron alloys as biodegradable metals

Original language description

In this paper, selected magnesium, zinc and iron biodegradable alloys were studied as prospective biomaterials for temporary medical implants like stents and fixation devices for fractured bones. Mechanical properties of the alloys were characterized with hardness and tensile tests. In-vitro corrosion behavior was studied using immersion tests in a simulated physiological solution (SPS, 9 g/L NaCl) to roughly estimate the in-vivo biodegradation rates of implants. It was found that the Mg and Zn alloys were limited by a tensile strength of 370 MPa, while the tensile strength of the Fe alloys achieved 530 MPa. The main advantage of the Mg alloys is that their Young's modulus of elasticity is similar to that of the human bone. However, the corrosion testsrevealed that the Mg-based alloys showed the highest corrosion rates in the SPS, ranging between 0.6 mm and 4.0 mm per year, which is above the tolerable degradation rates of implants. The corrosion rates of the Zn alloys were between 0.

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

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage</a><br>

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

Materiali In Technologie

ISSN

1580-2949

e-ISSN

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Volume of the periodical

49

Issue of the periodical within the volume

6

Country of publishing house

SI - SLOVENIA

Number of pages

6

Pages from-to

877-882

UT code for WoS article

000366552500005

EID of the result in the Scopus database

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