Molybdenum alloy is a nonferrous alloy composed of molybdenum matrix and other elements, which are nickel (Ni), copper (Cu), titanium (Ti), zirconium (Zr), hafnium (Hf), tungsten (W) and rare earth elements. The addition of alloying elements can not only strengthen molybdenum alloy in solid solution and maintain its low-temperature plasticity but also form a stable