Vanadium alloy (V-alloy) is of excellent mechanical properties at high temperature,relative low nu- clear activation level,good compatibility with liquid lithium that offer potentially significant advantages over other candidate alloys as a structural material for fusion reactor first wall/blanket applications. Vanadium alloy (V-alloy) is of excellent mechanical properties at high temperature, relative low nu-clear activation level, good compatibility with liquid lithium that offer potentially significant advantages over other candidate alloys as a structural material for fusion reactor first wall / blanket applications .