Development of new reduced activation HEAs by additive manufacturing method

Hashimoto, Naoyuki*; Isobe, Shigehito*; Oka, Hiroshi*   ; Hayashi, Shigenari*; Ueda, Mikito*; Yamashita, Shinichiro   ; Itakura, Mitsuhiro  ; Tsuru, Tomohito   

Owing to the reduced defects, low cost, and high efficiency, the additive manufacturing (AM) technique has attracted increasingly attention and has been applied in high-entropy alloys (HEAs) in recent years. For the purpose of creating new materials which show no radiation damage or prompt recovery of radiation damage, we launched a new program in which additive-manufactured HEAs are target materials and their fundamental properties are under investigation. In this presentation, we reported the some of new test results which are conducted in the program.