The initial corrosion behavior of AZ63 magnesium alloy was investigated in 1, 3, 5 and 7 wt.% NaCl solutions by means of corrosion potential, linear polarization, electrochemical impedance spectroscopy, and polarization measurements, during exposure in the corrosion media. Results show that the increase in chloride concentration provokes an increase in the corrosion rate. Based on the obtained kinetics parameters the mechanisms of anodic dissolution and hydrogen evolution reactions were discussed, and kinetic models were proposed. It is concluded that anodic dissolution proceeds under Temkin conditions and hydrogen evolution reaction depends on the surface coverage of Mg(OH)2 species.
Keywords:
chloride / corrosion potential / kinetics / linear polarizatio / reaction order
Source:
Transactions of Nonferrous Metals Society of China (English Edition), 2022, 32, 4, 1133-1143
TY - JOUR
AU - Grgur, Branimir N.
AU - Jugović, Branimir Z.
AU - Gvozdenović, Milica M.
PY - 2022
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5140
AB - The initial corrosion behavior of AZ63 magnesium alloy was investigated in 1, 3, 5 and 7 wt.% NaCl solutions by means of corrosion potential, linear polarization, electrochemical impedance spectroscopy, and polarization measurements, during exposure in the corrosion media. Results show that the increase in chloride concentration provokes an increase in the corrosion rate. Based on the obtained kinetics parameters the mechanisms of anodic dissolution and hydrogen evolution reactions were discussed, and kinetic models were proposed. It is concluded that anodic dissolution proceeds under Temkin conditions and hydrogen evolution reaction depends on the surface coverage of Mg(OH)2 species.
PB - Nonferrous Metals Society of China
T2 - Transactions of Nonferrous Metals Society of China (English Edition)
T1 - Influence of chloride ion concentration on initial corrosion of AZ63 magnesium alloy
EP - 1143
IS - 4
SP - 1133
VL - 32
DO - 10.1016/S1003-6326(22)65861-8
ER -
@article{
author = "Grgur, Branimir N. and Jugović, Branimir Z. and Gvozdenović, Milica M.",
year = "2022",
abstract = "The initial corrosion behavior of AZ63 magnesium alloy was investigated in 1, 3, 5 and 7 wt.% NaCl solutions by means of corrosion potential, linear polarization, electrochemical impedance spectroscopy, and polarization measurements, during exposure in the corrosion media. Results show that the increase in chloride concentration provokes an increase in the corrosion rate. Based on the obtained kinetics parameters the mechanisms of anodic dissolution and hydrogen evolution reactions were discussed, and kinetic models were proposed. It is concluded that anodic dissolution proceeds under Temkin conditions and hydrogen evolution reaction depends on the surface coverage of Mg(OH)2 species.",
publisher = "Nonferrous Metals Society of China",
journal = "Transactions of Nonferrous Metals Society of China (English Edition)",
title = "Influence of chloride ion concentration on initial corrosion of AZ63 magnesium alloy",
pages = "1143-1133",
number = "4",
volume = "32",
doi = "10.1016/S1003-6326(22)65861-8"
}
Grgur, B. N., Jugović, B. Z.,& Gvozdenović, M. M.. (2022). Influence of chloride ion concentration on initial corrosion of AZ63 magnesium alloy. in Transactions of Nonferrous Metals Society of China (English Edition)
Nonferrous Metals Society of China., 32(4), 1133-1143.
https://doi.org/10.1016/S1003-6326(22)65861-8
Grgur BN, Jugović BZ, Gvozdenović MM. Influence of chloride ion concentration on initial corrosion of AZ63 magnesium alloy. in Transactions of Nonferrous Metals Society of China (English Edition). 2022;32(4):1133-1143.
doi:10.1016/S1003-6326(22)65861-8 .
Grgur, Branimir N., Jugović, Branimir Z., Gvozdenović, Milica M., "Influence of chloride ion concentration on initial corrosion of AZ63 magnesium alloy" in Transactions of Nonferrous Metals Society of China (English Edition), 32, no. 4 (2022):1133-1143,
https://doi.org/10.1016/S1003-6326(22)65861-8 . .
