“…It is considered that the TSS is determined by fabrication history, irradiation, and additive elements. Although several effects have been studied [1][2][3][4][5][6][7][8][9][10][11][12][13][14], there have been few reports on the effect of additive elements. Therefore in the present study, the effect of additive elements such as Sn, Cr, Fe and Ni was examined separately and the influence of the additives on TSS was formulated.…”