Author/Authors :
Ku، نويسنده , , Duck Young and Oh، نويسنده , , Seungjin and Ahn، نويسنده , , Mu-Young and Yu، نويسنده , , In-Keun and Kim، نويسنده , , Duck-Hoi and Cho، نويسنده , , Seungyon and Choi، نويسنده , , Im-Sub and Kwon، نويسنده , , Ki-Bum، نويسنده ,
Abstract :
Korea is developing a Helium Cooled Solid Breeder Test Blanket Module for ITER. The primary candidate structural material is a Reduced Activation Ferritic/Martensitic steel. The complex TBM structure requires developing joining technologies for successful fabrication. The characteristics of Tungsten Inert Gas welding and Hot Isostatic Pressing joining of RAFM steel were investigated. Metallurgical examinations showed that the steel grain size was increased after HIP joining and recovered by post joining heat treatment. Both TIG welding and HIP joining are found to be acceptable for ITER TBM based on mechanical tests and microstructure examination.
