The Effect of the Cerium Addition on the (Corrosion Fraction Wear) Properties of (Aluminum – Iron) Base Alloy

Abstract

The present study deals with the effect of addition cerium in the corrosion–fraction wear behavior of with added (0.25%) cerium element. The solution used;salt solution ( 3%Wt.NaCl ) by weight , acidic solution (3%Vol.HCl ) by volume ,weight loss method ; electrochemical method ( Tafel Extrapolation ) andmicroscopic examination are used for study corrosion behavior of alloy . The resultof weight loss method showed different continues weight loss while the (B) alloyshowed weight loss at the first stage of the test then showed weight gain. The resultof electrochemical method ( Tafel Extrapolation ) showed the corrosion potentialand corrosion current of ( A ) alloy in the salt solution was E Corr.=-641.3 mv;ICorr. = 34.42μA/Cm2 while the corrosion potential and corrosion current for (B)alloy was E Corr. = -681.6 mv ; I Corr.= 51.50 μA/Cm2. The result of weight lossmethod in acid solution showed convergence in the result at first hour of the testafter that (A) alloy showed signification superiority on the ( B ) alloy . The resultof electrochemical method ( Tafel Extrapolation ) showed the corrosion potentialand corrosion current of ( A ) alloy in the acidic solution was E Corr.= -324.7 mv ;I Corr.=19.13 μA/Cm2 while the corrosion potential and corrosion current for ( B )alloy was E Corr. = -697.9 mv ; I Corr.=507.35 μA/Cm2. The result of fractionwear test showed significant superiority of alloy ( A ) on the alloy ( B )