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Potentiostatic Study of Aluminum Alloy AlМg5.5Li2.1Zr0.15 Type Duralumine with Lanthanum in an Aqueous Solution of NaCl
https://doi.org/10.31615/j.corros.prot.2024.113.3-4
Abstract
The article presents the results of a potentiostatic study of aluminum alloy AlMg5.5Li2.1Zr0.15 type duralumin with lanthanum in an aqueous solution of NaCl with a concentration of 0.03; 0.3 and 3.0 wt. %, at a potential sweep rate of 2 mV/s. The addition of lanthanum to the aluminum alloy AlMg5.5Li2.1Zr0.15 of the duralumin type was 0.01…1.0 wt. %. It has been shown that doping the specified alloy with lanthanum reduces its corrosion rate by 8…13%, which is accompanied by a shift of electrochemical potentials to the region of positive values. An increase in the concentration of NaCl in an aqueous solution contributes to an increase in the corrosion rate of alloys, regardless of their composition, and a shift of electrochemical potentials in the negative direction of the ordinate axis.
About the Authors
I. N. Ganiev
V.I. Nikitin Chemistry Institute of the National Academy of Sciences of Tajikistan
Tajikistan
Tajikistan
Izatullo N. Ganiev, Doctor of Chemical Sciences, Professor, Academician of the National Academy of Sciences of Tajikistan, Head of the Laboratory «Corrosion-Resistant Materials»
299/2, Sadriddin Aini st., Dushanbe, 734063
S. S. Savdulloeva
V.I. Nikitin Chemistry Institute of the National Academy of Sciences of Tajikistan
Tajikistan
Tajikistan
Salima S. Savdulloeva, researcher at the laboratory «Corrosion-Resistant Materials»
299/2, Sadriddin Aini st., Dushanbe, 734063
S. U. Khudoiberdizoda
V.I. Nikitin Chemistry Institute of the National Academy of Sciences of Tajikistan
Tajikistan
Tajikistan
Saidmiri U. Khudoiberdizoda, Ph.D. of Technical Sciences, Leading Researcher at the «Corrosion-Resistant Materials»
299/2, Sadriddin Aini st., Dushanbe, 734063
J. H. Dzhayloev
V.I. Nikitin Chemistry Institute of the National Academy of Sciences of Tajikistan
Tajikistan
Tajikistan
Jamshed Kh. Dzhayloev, Ph.D. of Technical Sciences, Leading Researcher at the «Corrosion-Resistant Materials»
299/2, Sadriddin Aini st., Dushanbe, 734063
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Review
For citations:
Ganiev I.N., Savdulloeva S.S., Khudoiberdizoda S.U., Dzhayloev J.H. Potentiostatic Study of Aluminum Alloy AlМg5.5Li2.1Zr0.15 Type Duralumine with Lanthanum in an Aqueous Solution of NaCl. Theory and Practice of Corrosion Protection. 2024;29(3):41-49. (In Russ.) https://doi.org/10.31615/j.corros.prot.2024.113.3-4
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