Effect of Barium on the Corrosion and Electrochemical Behavior of Lead Babbit BBa (PbSb15Sn10Ba) in a NaCl Electrolyte Medium.

Autor: Ganiev, I. N., Odinaev, A. Kh., Khodzhaev, F. K., Khodzhanazarov, Kh. M.
Zdroj: Russian Journal of Physical Chemistry; Dec2023, Vol. 97 Issue 12, p2829-2835, 7p
Abstrakt: Results are presented from studying the effect barium additives (0.01–1.0 wt %) as a structure modifier have on the anodic behavior of lead babbit BBa (PbSb15Sn10Ba) in a NaCl electrolyte medium. The studies are performed using the potentiostatic technique in the potentiodynamic mode with a potential sweep rate of 2 mV/s. It is shown that the free corrosion potential of alloys shifts to the positive side over time and acquires a positive value upon an increase in the concentration of the modifier (barium) in the lead babbit. Adding barium to lead babbit BBa (PbSb15Sn10Ba) raises its corrosion resistance by 20–25%. An increase in the rate of the corrosion of alloys is noted, regardless of their composition and the concentration of NaCl in a solution. It is shown that raising the concentration of chloride ions in a NaCl electrolyte lowers the potentials of the free corrosion, repassivation, and pitting of alloys. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index