Reactor Primary Coolant System Pipe Rupture Study Method for Detection of Sensitization in Stainless Steel.

摘要

A program is in progress to develop a quantitative method (Electrochemical Potentio Kinetic Reactivation (EPR)) for nondestructively measuring the degree of sensitization in Type-304and 304L stainless steels. The technique has been extended to characterize weld heat-affected zones and to correlate degree of sensitization with intergranular stress-corrosion cracking resistance. Current studies are directed toward establishing procedures for,and qualifying, a technique to obtain EPR measurements in-situ on reactor components in the field.