The role of yttrium and titanium during the development of ODS ferritic steels obtained through the STARS route: TEM and XAS study

TEM characterization combined with XAFS and XANES analyses have proven to be suitable tools to follow the evolution of the nature of the different oxides present in the material during the whole processing route and select appropriate HIP and post-HIP parameters to promote profuse and fine Y-Ti-O nanometric precipitates.