Development of Reduced-Activation Martensitic 9Cr Steels for Fusion Reactor.

Hot tensile properties of 9Cr-2WVTa reduced-activation ferritic/martensitic steel

Reduced-activation ferritic/martensitic steels have been developed by replacing molybdenum by tungsten and niobium by tantalum in commercial elevated-temperature Cr–Mo steels to reduce half-life of radioactive isotopes. The objective of this study was to investigate tensile properties of a reduced-activation ferritic/martensitic steel (9Cr-2WVTa) in normalized-tempered (NT) and quenched-tempere...

Current Status of Reduced-Activation Ferritic/Martensitic Steels R&D for Fusion Energy

Reduced-activation ferritic/martensitic (RAF/M) steels have been considered to be the prime candidate for the fusion blanket structural material. The irradiation data obtained up to now indicates rather high feasibility of the steels for application to fusion reactors because of their high resistance to degradation of material performance caused by both the irradiation-induced displacement dama...

Compatibility of Reduced Activation Ferritic/Martensitic Steels with Liquid Breeders

The compatibility of Reduced Activation Ferritic/Martensitic Steel (RAFM) with liquid Li and molten-salt Flibe have been characterized and accessed. Static compatibility tests were carried out in which the specimens were immersed into liquid Li or Flibe in isothermal autoclaves. Also carried out were compatibility tests in flowing liquid Li by thermal convection loops. In the case of liquid Li,...

hot tensile properties of 9cr-2wvta reduced-activation ferritic/martensitic steel

reduced-activation ferritic/martensitic steels have been developed by replacing molybdenum by tungsten and niobium by tantalum in commercial elevated-temperature cr–mo steels to reduce half-life of radioactive isotopes. the objective of this study was to investigate tensile properties of a reduced-activation ferritic/martensitic steel (9cr-2wvta) in normalized-tempered (nt) and quenched-tempere...

UWFDM-895 Reduced Activation Stainless Steels for Fusion Reactors