Abstract
New compositions of Al-Ce-X cast alloys have been developed to offer higher material performances than the conventional Al alloys for nuclear and other industrial applications. To assess the corrosion behavior of these new Al-Ce-X alloys, mass change measurements and electrochemical analysis were conducted using 0.23 wt.% boric acid solution, relevant to the water chemistry for the storage pool of spent nuclear fuels, and a 3.5 wt.% NaCl solution approximating sea water. Pre- and Post-corrosion Al alloy specimens were characterized by electron microscope systems including SEM, TEM and EDS. The initial electrochemical and mass change results suggest that Al-Ce-X alloys are resistant to corrosion in 0.23 wt.% boric acid but can be susceptible to corrosion in 3.5 wt.% NaCl solution. The initial characterization of post-corrosion samples indicated that one Al-Ce-X alloy type experiences uniform corrosion without any preferential or local attacks. Further corrosion analysis and characterization are underway for comprehensive understanding of corrosion phenomenon in these new alloys.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call