Effects of Hydrazine, Amines and Contaminant Species on Two-Phase Flow Accelerated Corrosion

摘要

Two-phase flow accelerated corrosion (FAC) has been measured in a full-scale serpentine once-through carbon steel boiler tube under operating conditions corresponding to those in a number of gas reactors built in the late 1960s. The effect of volatile and involatile species on FAC has been studied, and the results are discussed in terms of the effect on the FAC rate and the steam quality resulting in maximum FAC damage. The implications for two-phase FAC in other reactor systems and associated problems in once-through boilers are also discussed.