Session: Corrosion and Material Protection in Nuclear Systems
Determining the Efficiency of Nitrogen Blanketing to Mitigate Corrosion in Hanford’s Transfer Line System (C2026-00386)
Monday, March 16, 2026
10:30 AM - 11:00 AM Central
Location: 371 DE
Earn .5 PDH
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Kiana Sykes, Pavan Shukla, Benjamin Barkai, Melinda Fagundes, Roderick Fuentes, Bruce J. Wiersma, Jason Page
The Hanford site stores large quantities of radioactive waste in underground,carbon-steel, double-shell tanks. The waste is transferred between the tanks using piping that consists of carbon steel encased carrier and casing pipes. The transfer lines have shown extensive corrosion on both the interior of the casing and exterior of the carrier pipes. Nitrogen blanketing, used to displace the oxygen in the transfer lines, was hypothesized to control the moisture and reduce the corrosion of the transfer lines. Experimental studies were conducted to investigate the effect of oxygen concentration on the corrosion rate and the initiation of pitting on carbon steel. The results indicated that controlling the oxygen concentration to 0% effectively mitigates corrosion. However, at 5% oxygen concentration a significant increase in the general corrosion rate and pitting corrosion is observed.
