“…In addition, Fe-W interface plays an important role in various properties of Fe-W products, e.g., hydrogen is more easily trapped by Fe/W interface, and the hydrogen solubility of Fe/W interface is higher than that of bulk W or Fe [13]. In this respect, a lot of researches in the literature are focused on absorption performance [13], magnetic properties [14], cascade collision [15], and fabrication [16], etc. Nevertheless, the stress-strain behaviors and dislocation evolution of the Fe-W interface have not been reported in the literature.…”