Research progress on high temperature water vapor corrosion of nuclear graphite for high temperature gas-cooled reactors
Nuclear graphite is the matrix material of fuel elements and the structural material of the core in high temperature gas-cooled reactors.The high temperature water vapor corrosion performance of the nclear traphite is crucial for the overall safety of the reactor un-der water ingress accident conditions.Therefore,the study of the corrosion behavior of nuclear graphite is a key material research focus in high temperature gas-cooled reactors.This article reviews relevant research at home and abroad,summarizes the normal operation and accident conditions of high temperature gas-cooled reactors,the reaction mechanism of graphite steam corrosion,the microscopic characterization of graphite corrosion,and the application of computational simulation in graphite steam corrosion.It points out the prob-lems that need to be solved in future research on graphite corrosion.
Graphitehigh temperature gas-cooled reactorwater vapor corrosion
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