کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1469324 | 1510031 | 2012 | 11 صفحه PDF | دانلود رایگان |

The effect of static and hydrodynamic conditions (0–2000 rpm) on corrosion inhibition of a water-base acrylic terpolymer (ATP), methyl methacrylate/butyl acrylate/acrylic acid, for SAE1018 steel in simulated sour petroleum corrosive solution (NACE 1D196) were investigated by AC/DC electrochemical tests. Increase in rotation speed accelerates the corrosion rate; however the corrosion inhibitor efficiency increases. This was attributed to the enhanced mass transport of inhibitor molecules to the metal surface. OM examinations also demonstrate that in presence of ATP, a decrease in corrosion attacks is observed. Thermodynamic calculations also showed that ATP obeys Langmuir adsorption isotherm and adsorbs chemically into the surface.
► Corrosion inhibition of a water-base copolymer, ATP, was studied.
► Efficiency more than 90% was obtained with 0.8 mmol/L ATP in 2000 rpm.
► ATP obeys Langmuir isotherm in static and hydrodynamic conditions.
► With the presence of ATP, OM images showed a decrease in surface attack.
Journal: Corrosion Science - Volume 64, November 2012, Pages 44–54