Potential corrosion issues relevant to Fukushima Daiichi NPP

摘要

There are number of important components such as primary containment vessel,piping system for fuel cooling,pedestal of reactor pressure vessel,supporting structure of suppression chamber,and fuel cladding,to maintain boundary of radioactive materials or to support key structures of NPP.One of the most critical concern about ageing degradation of those important components of Fukushima Daiichi NPP is "corrosion" of metals and alloys.