Characterization of the Corrosion Product Films on the Dresden-1 Pilot Loop after Re-Exposure to Reactor Water

摘要

The chemical and physical properties of the corrosion product oxide films of four pipe and two coupon samples from the Dresden-1 pilot test loop have been measured. The samples represented stainless steel material that had been exposed to reactor water conditions before being chemically cleaned in June 1976 and material added after the loop was chemically cleaned. Twenty days of exposure to reactor water resulted in rapid buildup of radioactivity from the incorporation of high specific activity cobalt into the oxide films created by the corrosion of the stainless steel surfaces. The primary source of the cobalt radioactivity was the fuel deposits. (ERA citation 04:051440)