Corrosion behavior of brass immersed in CaCl2-LiBr-LiNO3/H2O blends

Flores-Guadarrama, Israel; Gónzalez-Rodríguez, J. G.; García-Rosas, D.; Guardían-Tapia, R.; León-Hernández, V.; López-Sesenes, R.

doi:10.1007/s10008-023-05539-1

Cited by 1 publication

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“…In another research work, 316L-type stainless steel was evaluated by When [25] in KCOOH and LiCl-H 2 O, and a lower dissolution rate in KCOOH was found as compared with that in LiCl-H 2 O. In our research, we have evaluated the corrosion behavior of different metals in the CaCl 2 -LiBr-LiNO 3 -H 2 O system instead of LiBr/H 2 O working fluid, finding a significant reduction in the corrosion rates of the different tested alloys [26][27][28]. In some research works [29,30], it has been shown that the LiCl-H 2 O cooling fluids have better thermophysical properties than LiBr-H 2 O.…”

Section: Introductionmentioning

confidence: 91%

Corrosion Behavior of Carbon Steel in LiCl/H2O Mixtures

Avilés-Flores,

Larios-Gálvez,

Martínez-González

et al. 2024

Metals

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The corrosion behavior of 1018 carbon steel in LiCl/H2O mixtures has been evaluated by using potentiodynamic polarization curves, electrochemical noise and electrochemical impedance spectroscopy techniques. Two different concentrations of LiCl were employed, namely 35 and 40 wt. %, and the testing temperatures included 25, 35 and 70 °C. It was found that the steel showed a passive zone; the corrosion current density value increased with an increase in the solution temperature and concentration. The pitting potential value decreased with an increase in the testing temperature and the solution concentration. The corrosion process was under charge transfer control. This mechanism was unaltered either by the solution temperature or concentration. The charge transfer resistance value decreased with an increase in both the solution temperature and concentration. A localized, pitting type of corrosion dominated the corrosion morphology at 25 and 35 °C, whereas at 70 °C, the main type of attack was a mixed type of corrosion.

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