Data on the corrosion resistance as-received, annealed and quenched 1060 aluminum alloy in dilute H2SO4 and HCl acid concentrations

Abstract

Abstract The effect of annealing and quenching heat treatment processes on the corrosion resistance of 1060 aluminum alloy was studied by weight loss method in 0.5, 1, 1.5 and 2M H2SO4 and HCl acid media. Alteration of the microstructural constituents of the alloy significantly influenced its corrosion resistance. Data obtained confirmed that quenched aluminum depicted the highest corrosion resistance with highest corrosion rate value of 0.00149 mm/y and 0.02151 mm/y from 2 M H2SO4 and HCl solution. Annealed aluminum exhibited the lowest corrosion resistance with optimal corrosion rates of 0.00768 mm/y and 0.02792 mm/y. Corrosion resistance of as-received aluminum was observed to be intermediate between the values obtained for quenched and annealed aluminum alloy. Annealed AL1060 exhibited the highest standard deviation value in H2SO4 while quenched AL1060 exhibited the highest values in HCl solution. Mean values generally increased with increase in acid solution for the as-received, annealed and quenched AL1060. Statistical data from analysis of variance (ANOVA) shows acid concentration is the statistically relevance sources of variation influence the the corrosion behaviour of as-received, annealed and quenched AL1060 in H2SO4 and HCl solution. The statistical relevance values for acid concentration obtained in H2SO4 solution 83.40%, 97.04% and 89.29% while the corresponding values in HCl solution are 97.94%, 99.29% and 96.07%. The values for exposure time were calculated to be statistically irrelevant in both acids.