Author/Authors :
Oliveira، نويسنده , , V.B. and Sandim، نويسنده , , M.J.R. and Stamopoulos، نويسنده , , D. and Renzetti، نويسنده , , R.A. and Santos، نويسنده , , A.D. and Sandim، نويسنده , , H.R.Z.، نويسنده ,
Abstract :
Reduced-activation ferritic–martensitic steels are promising candidates for structural applications in future nuclear fusion power plants. Oxide dispersion strengthened ODS-Eurofer and Eurofer 97 steels were cold rolled to 80% reduction in thickness and annealed in vacuum for 1 h from 200 to 1350 °C to evaluate both their thermal stability and magnetic behavior. The microstructural changes were followed by magnetic measurements, in particular the corresponding variation of the coercive field (Hc), as a function of both annealing and tempering treatments. Results show that Y2O3 nanoparticles strongly affect the mechanical properties of ODS-Eurofer steel but leave their magnetic properties fairly unchanged when compared with Eurofer-97 steel.