Presentation Information
[2I15]The influence of MA element addition process on the oxide particle dispersion in ODS-Cu
*Toshiki Saito1, Hao Yu1, Zimo Gao1, Yuki Jimba1, Yasuyuki Ogino1, Koji Inoue1, Sosuke Kondo1, Ryuta Kasada1 (1. Tohoku Univ.)
Keywords:
Divertor heat sink,Cu alloys,ODS-Cu,Mechanical alloying
Oxide dispersion strengthened Cu alloys (ODS-Cu) are expected to be a new divertor heatsink material for future fusion reactors. Our research group developed Zr-added ODS-Cu via mechanical alloying (MA) of Cu, Y2O3, and Zr. In Zr-added ODS-Cu, Yttria-stabilized Zirconia (YSZ) were densely formed and improved the alloy’s strength. The effectiveness of YSZ as a dispersoid in ODS-Cu was suggested.
Here, this research aimed to fabricate YSZ-dispersed Cu alloy via MA of YSZ and Cu and reveal the effect of the difference of MA process on the material properties.
As a result, Cu-YSZ showed lower hardness than Zr-added ODS-Cu, and dispersoids in Cu-YSZ were less dense compared to Zr-added ODS-Cu. The effectiveness of adding oxide-composing elements separately via MA was suggested.
Here, this research aimed to fabricate YSZ-dispersed Cu alloy via MA of YSZ and Cu and reveal the effect of the difference of MA process on the material properties.
As a result, Cu-YSZ showed lower hardness than Zr-added ODS-Cu, and dispersoids in Cu-YSZ were less dense compared to Zr-added ODS-Cu. The effectiveness of adding oxide-composing elements separately via MA was suggested.