Analysis of metallic sim-debris of the bundle degradation tests

Pshenichnikov, A. ; 永江 勇二 ; 倉田 正輝 

Pshenichnikov, A.; Nagae, Yuji; Kurata, Masaki

The work on analysis of metallic sim-debris have shown similarity between the test and real debris, which allowed the interpretation of the Unit 2 PCV debris origin and uncovered control blade degradation mechanism with formation of boron compounds in the metallic part of melt. Though the information was surely lacking, a rough estimation of the chemical composition of metallic debris and the place of the first solidification was made.