Investigation the effects of Na2MoO4 as an inhibitor on electrochemical corrosion behavior of 316L stainless steel in LiBr solution

Zolfaghari, Sahar; Baboukani, Amin Rabiei; Ashrafi, Ali; Ahmad, Shahzad

doi:10.5937/zasmat1801110z

Cited by 9 publications

(2 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter is due to that LiBr has good physical properties such as high hydration heat, good thermal stability, low viscosity and lack of crystallization problems. However, the newest analyses report that LiBr presents crystallization at high concentrations [1], negatively affecting metallic surfaces used as structural materials in heating and refrigeration systems. One of these adverse effects is weakening corrosion resistance in structural alloys (copper alloys, austenitic, duplex stainless steels, carbon steels, titanium and galvanised steel) [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Other compounds have been tested as corrosion inhibitors in ARS, such as Benzotriazole (BTA), sodium molybdate (Na 2 MoO 4 ), OH − , normalMnormalonormalO2−4 and lithium molybdate (Li 2 MoO 4 ) [1, 6–8]. Moreover, the newest studies tested compounds from natural products as corrosion inhibitors, such as Taraxacum officinale extract and Bistorta Officinalis extract applied to ARS [9,10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of refrigerant absorbent combinations in the corrosion resistance of copper as structural material in absorption refrigeration systems (ARS)

Flores-Guadarrama,

Gonzalez-Rodriguez,

Uruchurtu-Chavarín

et al. 2023

Corrosion Engineering, Science and Technology: The Internationa

View full text Add to dashboard Cite

The present research was focused on analyzing the corrosion resistance of copper in the presence of refrigerant-absorbent combinations such as lithium bromide (LiBr), lithium nitrate (LiNO 3 ) and calcium chloride (CaCl 2 ), used in Adsorption Refrigeration Systems (ARS). Electrochemical techniques such as open circuit potential, electrochemical impedance spectroscopy, electrochemical noise analyses and potentiodynamic polarisation curves were applied to study the test solution combination effect on the corrosion rate of copper as a structural material in ARS. OCP analyses reveal that the E corr shifted based on the temperature and test solution. Meanwhile, when the copper was immersed in LiBr/H 2 O + CaCl 2 at 80°C, the corrosion current density (I corr ) was lower (0.003 mA/cm 2 ). Also, The R p estimated from EIS shows an increase at 80°C. Micrographs of the copper surface immersed in LiBr/H 2 O and LiBr + CaCl 2 observed cracks and pits. But also, when the corrosion product layer was removed, a less heterogeneous surface was revealed.

show abstract