Material issues for Japanese ITER test blanket module fabrication process

Nomoto, Yasunobu; Hirose, Takanori; Tanigawa, Hiroyasu; Shiba, Kiyoyuki; Enoeda, Mikio; Akiba, Masato

A detailed study was conducted for water cooled, solid breeder, ferritic steel structure blanket as a Japanese primary candidates for ITER Test Blanket Module (TBM). The wall structure of TBM has built-in cooling channels, which is fabricated by Hot Isostatic Pressing (HIP) method using square tubes and thin plates. This paper presents a structural concept of water cooled, solid breeder, ferritic steel structure TBM and the key issues of structural material and the joining process for demonstration of the first wall structure.