Structural and corrosion characterization of biodegradable Mg-RE (RE=Gd, Y, Nd) alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F13%3A43896490" target="_blank" >RIV/60461373:22310/13:43896490 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/S1003-6326(13)62586-8" target="_blank" >http://dx.doi.org/10.1016/S1003-6326(13)62586-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/S1003-6326(13)62586-8" target="_blank" >10.1016/S1003-6326(13)62586-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural and corrosion characterization of biodegradable Mg-RE (RE=Gd, Y, Nd) alloys

Popis výsledku v původním jazyce

Binary Mg-Gd (up to 5% Gd in mass fraction), Mg-Nd (up to 9% Nd in mass fraction) and ternary Mg-Gd Y (up to 5% Gd, 1% Y) alloys with precisely determined contents of cathodic impurities (Fe, Ni, Cu, Co) were studied. The alloys were studied in the as-cast state (cooling rate of 500 K/min) and after solution heat treatment (T4). Structures were investigated by optical and scanning electron microscopy, energy dispersive spectrometry, X-ray diffraction and glow discharge spectrometry. Structural investigation was completed by Vickers hardness measurements. Corrosion behavior in the simulated physiological solution (9 g/L NaCl) was assessed by immersion tests and potentiodynamic measurements. It was found that the structures of the as-cast alloys were dominated by fine alpha-Mg dendrites and eutectic Mg-RE phases. The dendrites exhibited RE-concentration gradients which were most pronounced in the Mg-Gd alloys. For this reason, the T4 heat treatment of the Mg Gd alloy led to the formation

Název v anglickém jazyce

Structural and corrosion characterization of biodegradable Mg-RE (RE=Gd, Y, Nd) alloys

Popis výsledku anglicky

Binary Mg-Gd (up to 5% Gd in mass fraction), Mg-Nd (up to 9% Nd in mass fraction) and ternary Mg-Gd Y (up to 5% Gd, 1% Y) alloys with precisely determined contents of cathodic impurities (Fe, Ni, Cu, Co) were studied. The alloys were studied in the as-cast state (cooling rate of 500 K/min) and after solution heat treatment (T4). Structures were investigated by optical and scanning electron microscopy, energy dispersive spectrometry, X-ray diffraction and glow discharge spectrometry. Structural investigation was completed by Vickers hardness measurements. Corrosion behavior in the simulated physiological solution (9 g/L NaCl) was assessed by immersion tests and potentiodynamic measurements. It was found that the structures of the as-cast alloys were dominated by fine alpha-Mg dendrites and eutectic Mg-RE phases. The dendrites exhibited RE-concentration gradients which were most pronounced in the Mg-Gd alloys. For this reason, the T4 heat treatment of the Mg Gd alloy led to the formation

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Transactions of Nonferrous Metals Society of China

ISSN

1003-6326

e-ISSN

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Svazek periodika

23

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

1215-1225

Kód UT WoS článku

000324003300002

EID výsledku v databázi Scopus

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