Dresden 1 Radiation Level Reduction Program. Intergranular Corrosion Tests of Sensitized Type-304 Stainless Steel in Dow NS-1, and Stress Corrosion Cracking Tests of Type-304 Stainless Steel and Carbon and Low Alloy Steels in Dow

摘要

Corrosion tests were performed to evaluate the extent of intergranular attack on sensitized Type-304 stainless steel by a proprietary Dow Chemical solvent, NS-1, which is to be used in the chemical cleaning of the Dresden 1 primary system. In addition, tests were performed to evaluate stress corrosion cracking of sensitized Type-304 stainless steel and post-weld heat-treated ASTM A336-F1, A302-B, and A106-B carbon and low alloy steels in a solution to be used to remove residual metallic copper from the Dresden 1 primary system surfaces following the chemical cleaning. No evidence of deleterious corrosion was observed in either set of tests. (ERA citation 04:038626)