Application of ODS to titanium alloys

Konno, Azusa

no journal, , 

High temperature fission reactor HTR is used at high temperature about 1000 C, so Ni-based alloys are expected to use the core components of it. But Ni-based alloys is happened intergranular embrittlement by transmutated He. Then, there is some report that Fe-based ODS steel is one of the most effective candidate to overcome the problem; it has an excellent irradiation resistance. Because cavity is segregated at the interface of the oxide particles and matrix. So, the aim of this study is to evaluate the He cavity trapping effect at the interface of oxide particles and matrix in Ni-based ODS alloy and compare with those of Fe-based ODS.