화학공학소재연구정보센터
Applied Surface Science, Vol.427, 182-191, 2018
XPS and SEM analysis of the surface of gas atomized powder precursor of ODS ferritic steels obtained through the STARS route
An innovative powder metallurgy route to produce ODS FS, named STARS, has succeeded in atomizing steel powders containing the oxide formers (Y and Ti) and, hence, avoids the mechanical alloying (MA) step to dissolve Y in the matrix. A metastable oxide layer forms at the surface of atomized powders and dissociates during HIP consolidation at high temperatures, leading to precipitation of more stable Y-Ti-O nanoparticles. (C) 2017 Elsevier B.V. All rights reserved.