Irradiation hardening behaviors of tungsten–potassium alloy studied by accelerated 3-MeVW<sup>2+</sup> ions

Irradiation hardening behaviors of tungsten–potassium alloy studied by accelerated 3-MeVW²⁺ ions

Yang Xiao-Liang^{1, 2}, Chen Long-Qing¹, Qiu Wen-Bin¹, Song Yang-Yi-Peng¹, Tang Yi¹, Cui Xu-Dong^{2, †}, Liu Chang-Song³, Jiang Yan³, Zhang Tao³, Tang Jun^{1, ‡}

(a) Depth profiles of hardness for ITER-W and WK alloys after 3-MeV W²⁺ ion irradiation at 650 °C, with inset showing optical micrograph of nanoindentation in ITER-W after 8-dpa damage. Plots of (c) hardness and (d) hardness increment versus damage to irradiated layers in WK and ITER-W samples.