Structural integrity evaluation method for overheating rupture of FBR steam generator tube

摘要

this paper describes a structural integrity evaluation method for a SG tube of FBR incase of sodium-water reaction and creep rupture tests to obtain the strength of the tube material. In the SG of FBR, if intermediate size of water/steam leak (1-2 kg s~-1) would occur from a tube, it could cause overheating rupture of the multiple tubes surrounding the initially failed tube due to generated sodium-water reaction heat. In the ultra-high temperature condition, the creep strength of the material is one of the dominant factors for failure behavior.