THERMAL CREEP PROPERTIES OF ALLOY D9 FUEL CLAD TUBES OF FAST BREEDER REACTOR

摘要

Uniaxial thermal creep rupture properties of 20 percent cold worked alloy D9 fast reactor fuel clad tubes have been evaluated at 973 K in the stress range of 125 to 250 MPa. The results are compared with existing data on 20 percent cold worked type 316 stainless steel cladding tubes. Alloy D9 exhibited lower minimum creep rates, higher rupture lives and lower rupture ductilities at all the stress levels.