عرض بسيط للتسجيلة

المؤلفAbdeen D.H.
المؤلفAtieh M.A.
المؤلفMerzougui B.
المؤلفKhalfaoui W.
تاريخ الإتاحة2020-04-02T11:08:05Z
تاريخ النشر2019
اسم المنشورMaterials
المصدرScopus
الرقم المعياري الدولي للكتاب19961944
معرّف المصادر الموحدhttp://dx.doi.org/10.3390/ma12101634
معرّف المصادر الموحدhttp://hdl.handle.net/10576/13782
الملخصPolarization resistance and potentiodynamic scan testing were performed on 316L stainless steel (SS) at room temperature in carbon nanotube (CNT)-water nanofluid. Different CNT loadings of 0.05, 0.1, 0.3 and 0.5 wt% were suspended in deionized water using gum arabic (GA) surfactant. Corrosion potential, Tafel constants, corrosion rates and pitting potential values indicated better corrosion performance in the presence of CNTs with respect to samples tested in GA-water solutions. According to Gibbs free energy of adsorption, CNTs were physically adsorbed into the surface of the metal, and this adsorption followed Langmuir adsorption isotherm type II. Samples tested in CNT nanofluid revealed a corrosion performance comparable to that of tap water and better than that for GA-water solutions. Among all samples tested in CNT nanofluids, the lowest corrosion rate was attained with 0.1 wt% CNT nanofluid, while the highest value was obtained with 0.5 wt% CNT nanofluid. At higher CNT concentrations, accumulated CNTs might form active anodic sites and increase the corrosion rate. SEM images for samples of higher CNT loadings were observed to have higher pit densities and diameters.
راعي المشروعThis work was supported by Hamad Bin Khalifa University, College of Science and Engineering, Sustainable Development Division, Doha, Qatar. The publication of this article was funded by the Qatar National Library. Assistance provided by the Core Lab, HBKU is greatly appreciated. Special thanks to the Materials and Corrosion Laboratory at College of the North Atlantic-Qatar for their continuous support since the early stages of this research. Great gratitude is sent to Bruce Palmer for his guidance in this work.
اللغةen
الناشرMDPI AG
الموضوع316L stainless steel
Carbon nanotubes
Corrosion
Gum arabic
Polarization parameters
Potentiodynamic
العنوانCorrosion evaluation of 316L stainless steel in CNT-water nanofluid: Effect of CNTs loading
النوعArticle
رقم العدد10
رقم المجلد12
dc.accessType Open Access


الملفات في هذه التسجيلة

Thumbnail

هذه التسجيلة تظهر في المجموعات التالية

عرض بسيط للتسجيلة