CORROSION INHIBITION BEHAVIOR OF N,N′-BIS(۲,۴,۶-TRIHYDROXYACETOPHENONE)-PROPANDIIMINE ON ST۴۴.۰ STEEL IN ALKALINE NACL SOLUTION
- سال انتشار: 1394
- محل انتشار: مجله علم مواد و مهندسی ایران، دوره: 12، شماره: 2
- کد COI اختصاصی: JR_IJMSEI-12-2_005
- زبان مقاله: انگلیسی
- تعداد مشاهده: 71
نویسندگان
Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
Department of Chemistry, K. N. Toosi University of Technology, Tehran, Iran.
چکیده
The inhibition behavior of N,N′-bis(۲,۴,۶-trihydroxyacetophenone)-propandiimine (THAPP) as an environmentally friendly Salen Ligand on the corrosion inhibition of mild steel was studied in alkaline solution (pH=۱۰) containing ۳% NaCl. Measurements were carried out using electrochemical and surface techniques. The experimental results suggested that this compound was an effective corrosion inhibitor for mild steel and the protection efficiency was increased with the increase in inhibitor concentration. Polarization curves indicated that this organic compound was a mixed-type inhibitor. Adsorption on the mild steel surface follows the Langmuir isotherm model. Activation parameters and thermodynamic adsorption parameters of the corrosion process such as E a , ΔH, ΔS, K ads , and ΔG ads were calculated by the obtained corrosion currents at different temperaturesکلیدواژه ها
Corrosion, Inhibitor, adsorption isotherm, Langmuir.اطلاعات بیشتر در مورد COI
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