Inhibitive effect of sodium molybdate on corrosion of AZ31 magnesium alloy in chloride solutions

Maria A. Osipenko; Dzmitry S. Kharytonau; Aliaksandr A. Kasach; Jacek Ryl; Janusz Adamiec; Irina I. Kurilo

doi:10.1016/j.electacta.2022.140175

Inhibitive effect of sodium molybdate on corrosion of AZ31 magnesium alloy in chloride solutions

Maria A. Osipenko
, Dzmitry S. Kharytonau
, Aliaksandr A. Kasach
, Jacek Ryl
, Janusz Adamiec
, Irina I. Kurilo

Katedra Metalurgii i Recyklingu (RM/RM2)

Belarusian State Technological University
Jerzy Haber Institute of Catalysis and Surface Chemistry PAS
Gdańsk University of Technology

Wyniki badań: Wkład do czasopisma › Artykuł › recenzja

58 Cytowania z bazy Scopus

Abstrakt

In this work, corrosion inhibition of the AZ31 magnesium alloy was investigated in NaCl solutions containing different amounts of sodium molybdate inhibitor. Electrochemical, hydrogen evolution, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. The results showed that Na₂MoO₄ inhibitor provides reliable inhibition at high concentrations (150 mM). Surface examination by Raman and XPS spectroscopy confirmed the formation of a protective surface layer of mixed Mo(VI, V, IV) species. Based on these results, the mechanism of corrosion inhibition of the AZ31 alloy by aqueous molybdates was proposed.

Język oryginału	angielski
Numer artykułu	140175
Czasopismo	Electrochimica Acta
Tom	414
Identyfikatory DOI	https://doi.org/10.1016/j.electacta.2022.140175
Status publikacji	Opublikowano - 10 maj 2022

Cele SDG ONZ

Ten wynik przyczynia się do realizacji następujących celów zrównoważonego rozwoju

Cel 7 Przystępna i czysta energia

Obszary tematyczne ASJC Scopus

Ogólna inżynieria chemiczna
Elektrochemia

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10.1016/j.electacta.2022.140175

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Cytowanie

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title = "Inhibitive effect of sodium molybdate on corrosion of AZ31 magnesium alloy in chloride solutions",

abstract = "In this work, corrosion inhibition of the AZ31 magnesium alloy was investigated in NaCl solutions containing different amounts of sodium molybdate inhibitor. Electrochemical, hydrogen evolution, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. The results showed that Na2MoO4 inhibitor provides reliable inhibition at high concentrations (150 mM). Surface examination by Raman and XPS spectroscopy confirmed the formation of a protective surface layer of mixed Mo(VI, V, IV) species. Based on these results, the mechanism of corrosion inhibition of the AZ31 alloy by aqueous molybdates was proposed.",

keywords = "Corrosion, Corrosion mechanism, EIS, Magnesium alloy, Molybdate Inhibitor, XPS",

author = "Osipenko, \{Maria A.\} and Kharytonau, \{Dzmitry S.\} and Kasach, \{Aliaksandr A.\} and Jacek Ryl and Janusz Adamiec and Kurilo, \{Irina I.\}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = may,

day = "10",

doi = "10.1016/j.electacta.2022.140175",

language = "English",

volume = "414",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Inhibitive effect of sodium molybdate on corrosion of AZ31 magnesium alloy in chloride solutions

AU - Osipenko, Maria A.

AU - Kharytonau, Dzmitry S.

AU - Kasach, Aliaksandr A.

AU - Ryl, Jacek

AU - Adamiec, Janusz

AU - Kurilo, Irina I.

PY - 2022/5/10

Y1 - 2022/5/10

N2 - In this work, corrosion inhibition of the AZ31 magnesium alloy was investigated in NaCl solutions containing different amounts of sodium molybdate inhibitor. Electrochemical, hydrogen evolution, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. The results showed that Na2MoO4 inhibitor provides reliable inhibition at high concentrations (150 mM). Surface examination by Raman and XPS spectroscopy confirmed the formation of a protective surface layer of mixed Mo(VI, V, IV) species. Based on these results, the mechanism of corrosion inhibition of the AZ31 alloy by aqueous molybdates was proposed.

AB - In this work, corrosion inhibition of the AZ31 magnesium alloy was investigated in NaCl solutions containing different amounts of sodium molybdate inhibitor. Electrochemical, hydrogen evolution, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. The results showed that Na2MoO4 inhibitor provides reliable inhibition at high concentrations (150 mM). Surface examination by Raman and XPS spectroscopy confirmed the formation of a protective surface layer of mixed Mo(VI, V, IV) species. Based on these results, the mechanism of corrosion inhibition of the AZ31 alloy by aqueous molybdates was proposed.

KW - Corrosion

KW - Corrosion mechanism

KW - EIS

KW - Magnesium alloy

KW - Molybdate Inhibitor

KW - XPS

UR - https://www.scopus.com/pages/publications/85126547457

U2 - 10.1016/j.electacta.2022.140175

DO - 10.1016/j.electacta.2022.140175

M3 - Article

AN - SCOPUS:85126547457

SN - 0013-4686

VL - 414

JO - Electrochimica Acta

JF - Electrochimica Acta

M1 - 140175

ER -

Inhibitive effect of sodium molybdate on corrosion of AZ31 magnesium alloy in chloride solutions

Abstrakt

Cele SDG ONZ

Obszary tematyczne ASJC Scopus

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