The Electrochemistry Behaviour of Carbon Steel in 55% LiBr Solution with A-Mo Inhibitor

Abstract

The inhibition effects of A-Mo inhibitor on corrosion of carbon steel in 55% LiBr solution were investigated using cyclic potentiodynamic polarization curves EIS experiments, Mott-Schottky analysis, SEM, EDAX and XRD methods. The results revealed that A-Mo inhibitor was capable of inhibiting the corrosion of carbon steel in 55%LiBr solution, exhibiting high inhibition efficiencies around 99.7%. A-Mo inhibitor promoted the formation of a protective passive film composed of Fe, Mo and O elements. The passive film improved the electrochemistry performance and enhanced corrosion resistance of carbon steel.

Inhibitive effect of benzotriazole on the corrosion and corrosion fatigue of α‐Al bronze alloy in LiBr solution

“…Localized and general corrosion are the main two forms of corrosion in the LiBr/H 2 O system similar to that in NaCl, therefore a good inhibition is required which is performed through the addition of corrosion inhibitors. Inorganic inhibitors are widely used to mitigate corrosion rate, for example, cetyltrimethyl ammonium bromide, phosphomolybdic acid/SbBr 3 , vanadium‐substituted Keggin heteropoly salt, Na 2 MoO 4 , and Na 2 MoO 4 in presence of organophosphonate complex, B‐Mo‐W complex inhibitor, phosphonic acid‐Na 2 MoO 4 inhibitor, Na 3 PW 12 O 40 , enhanced Na 2 MoO 4 , and Li 2 CrO 4 as inhibitors . Since the absorption‐cooling machines might have different alloys (e.g., Cu, Cu‐based alloys might coexist coupled to carbon steel), inorganic inhibitors might be inappropriate if used alone.…”