SATURATION OF SWELLING IN NEUTRON-IRRADIATED MOLYBDENUM AND ITS DEPENDENCE ON IRRADIATION TEMPERATURE AND STARTING MICROSTRUCTURAL STATE

[摘要] Molybdenum and its alloys are of interest for potential fusion application due to their high melting points and relatively good thermal conductivities. The development of void superlattices during neutron irradiation appears to limit void swelling in pure molybdenum to values below 4% over a wide range of irradiation temperatures. The saturation value of swelling and the void superlattice parameter each appear to be somewhat dependent on temperature, but independent of the thermomechanical starting state. Formation of technetium and ruthenium by transmutation may also play some minor role in the microstructural evolution, but do not appear to be involved in the limitation of swelling observed in this and other experiments.

[发布日期] 1994-09-01

[效力级别]  Proceedings Paper