Aqueous molybdate provides effective corrosion inhibition of WE43 magnesium alloy in sodium chloride solutions

被引：60

作者：

Kharitonov, Dmitry S. ^{[1
]}

Zimowska, Malgorzata ^{[1
]}

Ryl, Jacek ^{[2
]}

Zielinski, Artur ^{[3
]}

Osipenko, Maria A. ^{[4
]}

Adamiec, Janusz ^{[5
]}

Wrzesinska, Angelika ^{[6
]}

Claesson, Per M. ^{[7
,8
]}

Kurilo, Irina I. ^{[4
]}

机构：

[1] Polish Acad Sci, Jerzy Haber Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland

[2] Gdansk Univ Technol, Fac Appl Phys & Math, Inst Nanotechnol & Mat Engn, PL-80233 Gdansk, Poland

[3] Gdansk Univ Technol, Dept Electrochem Corros & Mat Engn, PL-80233 Gdansk, Poland

[4] Belarusian State Technol Univ, Dept Phys Colloid & Analyt Chem, Minsk 220006, BELARUS

[5] Silesian Tech Univ, Inst Mat Sci, PL-40019 Katowice, Poland

[6] Lodz Univ Technol, Dept Mol Phys, PL-90924 Lodz, Poland

[7] KTH Royal Inst Technol, Sch Engn Sci Chem Biotechnol & Hlth, Div Surface & Corros Sci, SE-10044 Stockholm, Sweden

[8] RISE Res Inst Sweden, SE-11486 Stockholm, Sweden

来源：

CORROSION SCIENCE | 2021年 / 190卷

关键词：

A; Magnesium; B; EIS; XPS; Raman spectroscopy; Scanning probe microscopy; C; Molybdate inhibitor; SCANNING ELECTROCHEMICAL MICROSCOPY; CONVERSION COATINGS; ALUMINUM-ALLOY; LOCAL CHARACTERIZATION; PURE MAGNESIUM; MG CORROSION; SURFACE; RAMAN; MICROSTRUCTURE; IMPEDANCE;

D O I：

10.1016/j.corsci.2021.109664

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion and corrosion inhibition of WE43 magnesium alloy were investigated in NaCl solutions containing different amounts of sodium molybdate. Electrochemical, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. Electrochemical data showed that Na2MoO4 inhibitor provides reliable inhibition at concentrations at and above 100 mM. Raman and XPS spectroscopy demonstrated that the formed surface layer consists of mixed Mo(V, IV) species. This layer provided inhibition with an efficiency of 91-99 % after 24 h of exposure. A two-step oxidation-reduction mechanism of corrosion inhibition of the WE43 alloy by aqueous molybdates was proposed.

引用

页数：14

共 50 条

[1] Corrosion resistance of WE43 Mg alloy in sodium chloride solution
Pereira, Gualter Silva
Koga, Guilherme Yuuki
Avila, Julian Arnaldo
Bittencourt, Icaro Marino
Fernandez, Fernando
Miyazaki, Marcos Hideki
Botta, Walter Jose
Bose Filho, Waldek Wladimir
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2021, 272
[2] Corrosion inhibition of Elektron WE43 magnesium alloy in NaCl solution
Chirkunov, A. A.
Zheludkevich, M. L.
[J]. INTERNATIONAL JOURNAL OF CORROSION AND SCALE INHIBITION, 2018, 7 (03): : 376 - 389
[3] Polyaspartic acid as a corrosion inhibitor for WE43 magnesium alloy
Yang, Lihui
Li, Yantao
Qian, Bei
Hou, Baorong
[J]. JOURNAL OF MAGNESIUM AND ALLOYS, 2015, 3 (01) : 47 - 51
[4] Influence of a silane treatment in the corrosion resistance of a WE43 magnesium alloy
Zucchi, F
Grassi, V
Frignani, A
Monticelli, C
Trabanelli, G
[J]. SURFACE & COATINGS TECHNOLOGY, 2006, 200 (12-13): : 4136 - 4143
[5] CORROSION RESISTANCE TESTS OF MAGNESIUM ALLOY WE43 AFTER EXTRUSION
Przondziono, J.
Walke, W.
Hadasik, E.
Szala, J.
Wieczorek, J.
[J]. METALURGIJA, 2013, 52 (02): : 243 - 246
[6] Corrosion Bending Fatigue of RESOLOY® and WE43 Magnesium Alloy Wires
Maier, Petra
Griebel, Adam
Jahn, Matthias
Bechly, Maximilian
Menze, Roman
Bittner, Benjamin
Schaffer, Jeremy
[J]. MAGNESIUM TECHNOLOGY 2019, 2019, : 175 - 181
[7] Shot Peening Induced Corrosion Resistance of Magnesium Alloy WE43
Patil T.
Karunakaran R.
Bobaru F.
Sealy M.P.
[J]. Manufacturing Letters, 2022, 33 : 190 - 194
[8] Shot Peening Induced Corrosion Resistance of Magnesium Alloy WE43
Patil, T.
Karunakaran, R.
Bobaru, F.
Sealy, M. P.
[J]. MANUFACTURING LETTERS, 2022, 33 : 190 - 194
[9] In vitro corrosion and biocompatibility of phosphating modified WE43 magnesium alloy
Ye, Cheng-hong
Xi, Ting-fei
Zheng, Yu-feng
Wang, Shu-qin
Li, Yang-de
[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2013, 23 (04) : 996 - 1001
[10] Corrosion protection of WE43 magnesium alloy by fluoride conversion coating
[J]. 1600, Jan-Evangelista-Purkyne-University (17):

← 1 2 3 4 5 →