THE EFFECT OF TEMPERATURE AND ACID CONCENTRATION ON POLARIZATION RESISTANCE FOR A CORROSION REACTION UNDER ACTIVATION CONTROL

محتوى المقالة الرئيسي

Aprael Sarguis Yaro

الملخص

The effect of temperature ( 30,40,50,and 600C) on the polarization resistance (Rp) has been
analyzed for the corrosion of carbon steel in 1,3, and 5N HCl solution in absence & presence of
phenylthiourea(PHTU) as corrosion inhibitor.The polarization resistance was measured at above
mentioned conditions using BETACRUNCH program developed by Green and Gandi[Green,1982]. i.e; Values of applied current densities at potentials of +20,+10,-10 mv and then -20,+10,-10mV(SCE) from corrosion potentials were used to obtain corrosion parameters: iCorr ,ba bc followed by applying the equation: Rp = ( ba bc )/ 2.303 x iCorr.( ba + bc ).It is observed that: (i) for a certain acid concentration the polarization resistance decreased with increase in temperatureand/or decrease in inhibitor concentration.(ii) for a certain temperature, the polarization resistance decreases with an increase in acid concentration in presence and absence of inhibitor.

##plugins.themes.bootstrap3.displayStats.downloads##

##plugins.themes.bootstrap3.displayStats.noStats##

تفاصيل المقالة

القسم

Articles

كيفية الاقتباس

"THE EFFECT OF TEMPERATURE AND ACID CONCENTRATION ON POLARIZATION RESISTANCE FOR A CORROSION REACTION UNDER ACTIVATION CONTROL" (2009) مجلة الهندسة, 15(2), ص 3831–3839. doi:10.31026/j.eng.2009.02.21.

المراجع

 Abdul-Hassan,A.S.,Msc. Thesis,University of Baghdad,Sep.(2004).

 Abiiola,O.K.,Oforka,N.C.," Corrosion scince Engineering",3,21(2002), http:/www2.umist.ac.uk/corrosion/JCSE/Volum/paper 21/v3P21.ht

 El-Anadouli,B.E.,Ateya,B.G.,and EL-Nizamy,F.M.,"Corrosion Sci."Vol.26.No.6,P.419-424(1986).

 Ashassi-Sorkhabi,H.,and Seifzadeh,D.,"Int.J.Electrochemi.Sci."1,P.92-98(2006)

 Barrow,G.M.,Physical Chemistry,McGraw- Hill,New York,P.739(1983).

 Demaskin,B.B.," Adsorption of organic compounds on electrodes",Plenum press,New York,P.221(1971).

 Ebenso,E.E.,Nig. Corrosion J.I.,1,29(1998).

 EL-Anadouli,B.E.,Ateya,B.G.,and EL-Nizamy,F.M.,"Corrosion Sci.",Vol.26,6,p.419- 424(1986).

 Mishra, A.K.,and Balasubramanian,R.,"Corrosion",Vol.63,3(2007)

 Mahmoud, S.S.,"Corrosion"Vol.61,12(2005)

 Neufeld, R.," Corrosion Sci.",4,245 (1964)

 Putilova,I.N.,Balezin,S.A.,and Baranik,V.P.,""Metallic corrosion inhibitor" pergamon press,Oxford(1960).

 Stern,M., and Geary,R.L.," Electrochemi. Soc." Vol.104(1957).Tamba, A.," Br. Corrosion J.",17,29(1982)

المؤلفات المشابهة

يمكنك أيضاً إبدأ بحثاً متقدماً عن المشابهات لهذا المؤلَّف.