Development of Fe−12%Cr mechanical-alloyed nano-sized ODS heat-resistant ferritic alloys

Autor: Ick Soo Kim, Byung-Young Choi
Rok vydání: 2002
Předmět:
Zdroj: Metals and Materials International. 8:265-270
ISSN: 2005-4149
1598-9623
Popis: The development of mechanical alloying (MA)-oxide dispersion strengthened (ODS) heat-resistant ferritic alloys of Fe−12%Cr with W, Ti and Y203 additions were carried out. Fe−12%Cr alloys with 3%W, 0.4%Ti and 0.25% Y203 additions showed a much finer and more uniform dispersion of oxide particles among the alloy system studied. Nano-sized oxides dispersed in the alloys suppress the grain growth during annealing at a high temperature and resulted in the remarkable improvement of creep strength. The oxide phase was identified as a complex oxide type of Y−Ti−O.
Databáze: OpenAIRE