Abstract
Sacrificial anode cathodic protection is one of the most widely used methods in protecting buried
oil pipe lines against the corrosion damages. In the present work, a series of Aluminum alloys have
been prepared as sacrificial anodes candidates to be used in the protection of the oil pipelines that
pass through the Al-Mahawil region. These prepared alloys were microstructurally and
electrochemically characterized to evaluate their performance as Al-sacrificial anodes for cathodic
protection of oil pipes The relationships between the protection potential with time, sacrificial
anode life, discharge currents, and capacity of sacrificial anodes were found, taking into
consideration the distance between sacrificial anode and protected steel sample. According to the
results obtained, the best selection of sacrificial anodes was Al-4% Zn-0.4% Sn) alloy at 30cm in
Al-Mahawil region.