Corrosion Protect of Brass Tubes Heat Exchanger by using CuO Nanocoating with Thermal Pyrolysis Techniques


Hussein Y. Mahmood,Khalid A. Sukkar,Wasan K. Mikhelf,



Heat exchangers,Petroleum refinery,corrosion,Nano-coating,


In this paper, thermal pyrolysis nanocoating technique was used to coat the brass alloy (grade B-111) of heat exchanger that used in Midland Refineries Company- Iraq. The nanocoating specifications and surface characterization have been made by using many measuring techniques; Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), and X-ray Diffraction (XRD). From AFM results, it was observed that the particle size of nanocoated brass substrate was 70 nm. From XRD results it was showed high crystalline thin films. On the other hand, the SEM results showed good smooth surface morphology films. The corrosion behavior of with and without nanocoated brass tubes achieved by study the open circuit potential, corrosion current density and corrosion potential which are used to determine the corrosion rates in 3.5M of sodium chloride solution. The results indicated that nanocoated substrate showed insignificant weight losses in comparison to that of uncoated substrate. So minimum weight loss with CuO nanocoating with thermal pyrolysis technique at 0.04M was 2.5*10-2 mm/year.


I. B. D. Hall, D. Zanchet and D. Ugarte ; Estimating nanoparticle size from
diffraction measurements , Journal of Applied Crystallography, Volume 33,
Part 6 (December 2000).
II. D. Jones ,”principle and prevention of corrosion “, prentice-Hall (1996).
III. E.Nun, M. Oles, B. Schleich, Macromol.Symp. 2002, 187, 677–682.
IV. F.Z. Chafi1*, A. Hadri1, C. Nassiri1, B. Fares1, L. Laanab1, N. Hassanain1,
A. Mzerd1,” UndopedCuO deposited by Spray Pyrolysis technique” J. Mater.
Environ. Sci. 7 170-175,ISSN : 2028-2508, (2016).
V. Hassan Al-HajIbrahim, “Fouling in heat exchangers”, MATLAB – A
Fundamental Tool for Scientific Computing and Engineering Applications,
Vol. 3,, (2012).
VI. Hussein Y. Mahmood, Khalid A. Sukkar, Wasan K. Mikhelf“Corrosion
reduction for brass alloy by using different nano-coated techniques’’ISSN
(Online) : 2454 -7190 Vol.-14, No.-3, May-June ,J. Mech. Cont.& Math.
Sci.,pp 30-46 ISSN (Print) 0973-8975,(2019)

VII. K.Chang, Tiny is Beautiful, Translating“Nano”into Practical, The New York
Times (2005).
VIII. L.Pastorello and A.Bonanno, “application of nano-structured coatings to the
heat transfer surface of heat exchangers”, the fourteenth scandinavian inter.
conf. on fluid power, at tampere, (2015).
IX. M. A.Mostafa, “Fouling of Heat Transfer Surfaces”, Mansoura University,
Faculty of Engineering, Mech. Power Eng. Dept., University Campus STeP
X. National Science and Technology Council US, The National Nanotechnology
Initiative, Supplement to the President’s Budget, (2006).
XI. N.Taniguchi, “On the Basic Concept of ‘Nano-Technology”, Proc. Intl. Conf.
Prod. Eng. Tokyo, Part II, Japan Society of Precision Engineering, (1974).
XII. Parkin, I. P., R. G. Palgrave, J. Mater.Chem. 2005, 15(17), 1689–1695.
XIII. S. A. Ajeel, M. A.Abdulkareem, Zamen KARM,” Titanium oxide nanotube
arrays used in implant materials” U.P.B. Sci. Bull., Series B, Vol. 76, Iss. 2,
XIV. T., Fontana M. and Greene N.,” Corrosion Engineering”, International student
hird edition, McGraw Hill,(1984).

View Download