Mg Anodes Corrosion Testing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41310%2F25%3A106125" target="_blank" >RIV/60460709:41310/25:106125 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Korozní testování Mg anod

Original language description

This report presents an evaluation of the corrosion behaviour of three sets of magnesium (Mg) anodes (Sets 1–3) supplied by VAV Elektronic, s.r.o. The corrosion performance was assessed using a combination of electrochemical methods—specifically potentiodynamic polarisation (Tafel analysis)—and gravimetric mass-loss measurements in a 3 wt.% NaCl solution at laboratory temperature. The electrochemical tests enabled determination of corrosion rates, corrosion currents, current densities, and polarisation resistance for individual samples. The obtained values are consistent with the typical corrosion behaviour of magnesium in chloride-containing environments and do not indicate statistically significant differences among the tested anode sets. Gravimetric measurements performed after exposure periods of 24 and 168 hours revealed no measurable mass loss for any of the samples. Based on the results of both analytical approaches, no clear distinction between the best or worst corrosion performance among the three anode sets could be established, as all samples exhibited comparable and stable corrosion characteristics.

Czech name

Korozní testování Mg anod

Czech description

This report presents an evaluation of the corrosion behaviour of three sets of magnesium (Mg) anodes (Sets 1–3) supplied by VAV Elektronic, s.r.o. The corrosion performance was assessed using a combination of electrochemical methods—specifically potentiodynamic polarisation (Tafel analysis)—and gravimetric mass-loss measurements in a 3 wt.% NaCl solution at laboratory temperature. The electrochemical tests enabled determination of corrosion rates, corrosion currents, current densities, and polarisation resistance for individual samples. The obtained values are consistent with the typical corrosion behaviour of magnesium in chloride-containing environments and do not indicate statistically significant differences among the tested anode sets. Gravimetric measurements performed after exposure periods of 24 and 168 hours revealed no measurable mass loss for any of the samples. Based on the results of both analytical approaches, no clear distinction between the best or worst corrosion performance among the three anode sets could be established, as all samples exhibited comparable and stable corrosion characteristics.

Type

V_utaj - Research report containing classified information

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

U - Předmět řešení projektu je utajovanou skutečností podle zvláštních právních předpisů nebo je skutečností, jejíž zveřejnění by mohlo ohrozit činnost zpravodajské služby. Údaje o projektu jsou upraveny tak, aby byly zveřejnitelné

Number of pages

5

Place of publication

Praha

Publisher/client name

VAV Elektronic, s.r.o.

Version

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