عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TL50613
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Corrosion Evaluation of 316L Stainless Steel Exposed to Cnt-Water Nanofluid
نام عام مواد
[Thesis]
نام نخستين پديدآور
Abdeen, Dana
نام ساير پديدآوران
Hussien, Muataz
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Hamad Bin Khalifa University (Qatar)
تاریخ نشرو بخش و غیره
2019
يادداشت کلی
متن يادداشت
179 p.
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
Hamad Bin Khalifa University (Qatar)
امتياز متن
2019
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
CNTs-water nanofluids are new innovative materials that own extraordinary properties due to the presence of fine particles suspended in their base solutions. They have potential applications in many industrial sectors as they are expected to provide remarkable energy savings and emission reductions if used in cooling applications. Hence, it is important to study their corrosion behaviour to maintain equipment performance and ensure safety aspects. Three consequent corrosion tests were conducted on 316L stainless steel (SS) exposed to carbon nanotubes (CNTs) water-based nanofluids: open circuit test, polarization resistance test, and potentiodynamic scans. The electrochemical testing was performed at different CNTs loadings of 0.05, 0.1, 0.3 and 0.5 wt.% that were suspended in deionized water using the surfactant Gum Arabic (GA). Temperature effect was also examined with the same corrosion testing performed on the same SS exposed to 0.1 and 1.0 wt.% CNTs nanofluids at temperatures of 22, 40, 60 and 80°C. Different corrosion parameters were investigated, such as corrosion rate, corrosion potential, pitting potential, and anodic and cathodic Tafel slopes. Adsorption isotherm for CNTs adsorption on the surface of the metal and some thermodynamic properties of adsorption were found to help in proposing a mechanism for CNTs corrosion inhibition. It was observed that the SS tested in CNTs nanofluids presented low corrosion rates, which were comparable to those for tap water and lower than those for 3.5 wt.% NaCl solutions. CNTs had a blocking effect on increasing corrosion resistance as a black layer was physically adsorbed on the surface of the metal. A maximum inhibition of 61% was achieved in 0.1 wt.% CNTs nanofluid at room temperature. Further increase in the CNTs concentrations and in nanofluid' temperature showed to decrease the corrosion performance.
اصطلاحهای موضوعی کنترل نشده
اصطلاح موضوعی
Chemical engineering
اصطلاح موضوعی
Materials science
اصطلاح موضوعی
Nanotechnology
اصطلاح موضوعی
Sustainability
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Abdeen, Dana
نام شخص - ( مسئولیت معنوی درجه دوم )
مستند نام اشخاص تاييد نشده
Hussien, Muataz
شناسه افزوده (تنالگان)
مستند نام تنالگان تاييد نشده
Hamad Bin Khalifa University (Qatar)
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
