CORROSION BEHAVIOUR OF AZ31 MAGNESIUM ALLOY IN SALINE CONTAINING GLUCOSE AT DIFFERENT CONCENTRATIONS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F22%3APU147717" target="_blank" >RIV/00216305:26310/22:PU147717 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.37904/metal.2022.4487" target="_blank" >http://dx.doi.org/10.37904/metal.2022.4487</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2022.4487" target="_blank" >10.37904/metal.2022.4487</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CORROSION BEHAVIOUR OF AZ31 MAGNESIUM ALLOY IN SALINE CONTAINING GLUCOSE AT DIFFERENT CONCENTRATIONS

Popis výsledku v původním jazyce

AZ31 magnesium alloy was subjected to corrosion tests in a 0.9% NaCI containing 0 to 5 g/L D-glucose at 37 °C. Potentiodynamic measurements were performed in corrosive environments with natural pH and with the pH set to 7.4. The results show that glucose in the range of 0.1 to 5 g/L led to a deterioration of the corrosion resistance of AZ31 alloy in 0.9% NaCI at an initial pH of 7.4. If the corrosive environment did not have a set pH, then a slightly different behavior was observed. Addition of 0.1 g/L glucose to 0.9% NaCI resulted in inhibition of corrosion, while higher concentrations accelerated corrosion. The corrosion aggravation was related to the oxidation of glucose to gluconic acid, which together with chlorides degraded the Mg(OH)2 layer on the AZ31 alloy surface. Surface analysis revealed that the corroded AZ31 alloy was covered with fine crystals in the absence of glucose.

Název v anglickém jazyce

CORROSION BEHAVIOUR OF AZ31 MAGNESIUM ALLOY IN SALINE CONTAINING GLUCOSE AT DIFFERENT CONCENTRATIONS

Popis výsledku anglicky

AZ31 magnesium alloy was subjected to corrosion tests in a 0.9% NaCI containing 0 to 5 g/L D-glucose at 37 °C. Potentiodynamic measurements were performed in corrosive environments with natural pH and with the pH set to 7.4. The results show that glucose in the range of 0.1 to 5 g/L led to a deterioration of the corrosion resistance of AZ31 alloy in 0.9% NaCI at an initial pH of 7.4. If the corrosive environment did not have a set pH, then a slightly different behavior was observed. Addition of 0.1 g/L glucose to 0.9% NaCI resulted in inhibition of corrosion, while higher concentrations accelerated corrosion. The corrosion aggravation was related to the oxidation of glucose to gluconic acid, which together with chlorides degraded the Mg(OH)2 layer on the AZ31 alloy surface. Surface analysis revealed that the corroded AZ31 alloy was covered with fine crystals in the absence of glucose.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20300 - Mechanical engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

31st International Conference on Metallurgy and Materials, METAL 2022

ISBN

978-80-88365-06-8

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

549-554

Název nakladatele

Neuveden

Místo vydání

neuveden

Místo konání akce

Orea Congress Hotel Brno

Datum konání akce

18. 5. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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