Mechanical properties of spark plasma sintered Fe-Cr compacts strengthened by nanodispersed yttria particles


Mechanical properties of spark plasma sintered Fe-Cr compacts strengthened by nanodispersed yttria particles

Franke, P.; Heintze, C.; Bergner, F.; Weissgärber, T.

Oxide dispersion strengthening of high-Cr steels is a well-recognized way to extend the application window including nuclear applications for this class of materials. The experimental investigation of model alloys of less complexity is important in order to separate individual influence factors and to understand the irradiation behaviour. The present work is devoted to the mechanical properties of ODS Fe-9wt%Cr alloys produced by means of spark plasma sintering. The range of material conditions covers contents of nanodispersed yttria of 0 (reference), 0.3 wt% and 0.6 wt% as well as variations of the milling time. Results obtained for the density, elastic properties, hardness, tensile behaviour and brittle-ductile transition are reported and the effect of ODS content and PM process parameters is discussed.

  • MP Materials Testing 52(2010), 133-138

Permalink: https://www.hzdr.de/publications/Publ-12701
Publ.-Id: 12701